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  • Lutron Credenza Plug-In Dimmer for Incandescent and Halogen Bulbs, TT-300H-WH, White
  • Lutron 24/7 SupportLutron Electronics Company
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Lutron Credenza Plug-In Dimmer for Incandescent and Halogen Bulbs, TT-300H-WH, White

4.6 out of 5 stars (9,801)

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Color: White
Pattern Name: Dimmer

About this item

  • Product only works with incandescent and halogen bulbs; to dim LED bulbs, see TTCL-100H-WH
  • Dims table and floor lamps
  • Easy slide operation allows you to adjust lights to desired level
  • Saves energy and extends bulb life
  • Designed for use with incandescent or halogen bulbs
  • Easy plug-in installation, no additional wiring necessary
  • 6' cord length
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From the manufacturer

Lutron, Dimmer Switch, Lutron Dimmer, Dimmer, LED Dimmer, LED Dimmer Switch, Light Dimmer, Dimming

Product information

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Lutron Credenza Plug-In Dimmer for Incandescent and Halogen Bulbs, TT-300H-WH, White


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Product Description

Using Lutron's Credenza Lamp Dimmer, control any table or floor lamp instantly, Simply plug the control into the wall socket and plug the lamp into the control. No additional wiring necessary. Great for the nursery, bedroom and living room, the credenza allows you to set the lights to the perfect level for any activity. Featuring an easy to use slider, simply adjust the lights to the level that you want or slide to turn the lights off. Dimming the lights also helps to save energy and extend bulb life, while adding comfort and convenience to your environment. Anywhere there is a lamp in the home, use Credenza Lamp Dimmers.

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Top Brand: Lutron

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Customer reviews

4.6 out of 5 stars
9,801 global ratings
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Customers say

Customers find the dimmer switch easy to use and appreciate its functionality, with one mentioning it works well for snake tank heat mats. The brightness control receives mixed feedback - while some say it dims to the perfect amount, others find it doesn't work well. Compatibility is also mixed, as it works perfectly with incandescent bulbs but doesn't work with LED lamps. While some customers report reliable performance lasting up to 5 years, others mention it stopped working after about two months of use.
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981 customers mention functionality, 862 positive, 119 negative
Customers find that the dimmer switch works well, particularly for lamps, with one customer noting its effectiveness for snake tank heat mats.
...Its small and it works GREAT! Had our old one for over 20 years, so it was time for a replacement. This does the trick beautifully. Thanks Lutron!Read more
This is a great deal I would recommend this item. It works perfectly and the cost is much less than you will usually find locally at your hardware...Read more
I use this in combination with the Philips 40 watt light bulb. It works well as am able to control amount of light I want when reading or watching...Read more
This works as advertised. I use these in my massage office to dim lamps. Just make sure they are turned all the way off when you leave....Read more
405 customers mention quality, 371 positive, 34 negative
Customers find the dimmer to be of good quality, describing it as a nice little unit and cool item.
...Overall, great product - the only potential suggestion that I have would be to add a mounting method on the remote - I personally don't need it but...Read more
...What else can I say. They are perfect and the price is awesome!! MUST HAVE to dim those annoying lights that are just too right....Read more
...the slider switch rattles about in it. it's a good product, light transition is smooth.. it just, I don't know , feels low-end or something....Read more
...It's a great attachment to a lamp we keep in there rather than having to turn on the ceiling lights all the time....Read more
354 customers mention dimmer, 314 positive, 40 negative
Customers appreciate the dimmer's functionality, finding it fantastic and easy to use, with one customer specifically mentioning its effectiveness with bedside lamps.
this is a great dimmer. We use it on a table lamp with three edison bulbs in it and it works without a hitch. wish it came in other colors though.Read more
Good dimmer.Read more
this is a great dimmer switch, I use it for an overhead light and have the switch on my desk....Read more
love this dimmer. Bought it againRead more
214 customers mention ease of use, 210 positive, 4 negative
Customers find the dimmer switch easy to use, describing it as simple to plug in and turn on and off.
This is an effective dimmer which is easy to use and is priced well. I like that it is brown. I have had no problems with it and it works very well.Read more
These do the job! Simple and stand the test of time. I've had these for at least three years and just bought another set for my nightstands....Read more
...It works great! Easy to install, easy to operate. The only thing is you need a decently good lamp for it to work....Read more
It works, easy, just plug in and it dimmer the light good. I use it on my floor standing halogen lamp.Read more
193 customers mention dimmer function, 157 positive, 36 negative
Customers are satisfied with the dimmer's performance, noting that it works great with bulbs and creates any desired light level. One customer mentions it successfully controls multiple outdoor light strings.
well....i don't know if it is my lamp or this dimmer. the dimmer works great BUT it gets so hot i'm afraid it might burn the house down....Read more
This dimmer works well but with some flaws........The transition phasing of the light sometimes jumps and isn't smooth and it flickers at times at...Read more
These are great for using with Christmas lights on stuff for ambient lighting. Also good for lamps.Read more
Amazing for power tools it's a perfect dimmer switch good price and great qualityRead more
252 customers mention brightness, 171 positive, 81 negative
Customers have mixed opinions about the dimmer's brightness control, with some praising its ability to adjust to the perfect amount of light, while others report that the lowest setting is still too bright and that it doesn't dim well.
Works great! It dims pretty low which is what I hope for in the baby's room. Cord is long enough too.Read more
...It's a simple light dimmer that has only one function, to dim lights. The dimmer is about 6 ft. 4 in. in length, the switch itself is 3 inches....Read more
...The lights at the highest setting were VERY dim, to the point of being useless. There needs to be an open setting that permits full voltage.Read more
It dims as expected, but emits a high-pitched buzzing noise while doing so....Read more
190 customers mention compatibility, 118 positive, 72 negative
Customers have mixed experiences with the dimmer's compatibility: it works well with incandescent lightbulbs, table lamps, and pre-lit Christmas trees, but does not function with LED lamps or compact fluorescent bulbs.
...I expect this works great with incandescent bulbs too.Read more
Make sure you read the description. Does NOT work with LED bulbs. Works great with incandescent.Read more
Works on my string lights :)...Read more
Works fantastic with my yogurt maker. I was able to adjust it precisely to make my yogurt maker exactly the right power to make perfect yogurt....Read more
178 customers mention reliability, 74 positive, 104 negative
Customers have mixed experiences with the dimmer's reliability, with some reporting it worked reliably for 5 years while others found it quit working after about two months of usage.
It’s defective; using it with a regular light bulb and rather than dimming/brightening, it just flickers a bright light.Read more
...Reliable, movable, easy to use and allowing for varied brightness with a tradeoff of the extension cord being at a single position, these dimmer...Read more
Worked for two days, used it about six times and it stopped working. It came sealed in a hard plastic package and looked unused and unopened....Read more
This has worked reliably for 5 years (almost to the day) before kicking the bucket today....Read more
Exactly what I needed to dim a lamp
5 out of 5 stars
Exactly what I needed to dim a lamp
Super happy with this dimmer control for lamps. Wasn't sure this would work the way I wanted it to, but it's perfect! My 5yr. old granddaughter just can't sleep without lights on, and while one is a low watt light her other lamp isn't and she freaks out when I turn it off, so a few compromises. I ordered a Dubofu LED, Dimmable, Blue Light Blocking Light bulb to reduce the blue light which can affect sleep quality, and then ordered this dimmer cord/switch combo. The Dubofu bulb was a huge improvement, on its own my granddaughter was able to sleep through the night the last two sleep overs. And now with the addition of the dimmer switch I can dim the light once she is asleep, for a bit lower light level. Totally love that the dimmer switch is a slider and goes from full level (of the bulb) and everything between all the way to off. The cord nor the switch produce any heat while in use, so that gives me the comfort it won't short out or cause other issues. Nice long cord too - not super long, but 6 feet is plenty for most uses. I keep the control box tucked behind the humidifier on the nightstand so that my granddaughter doesn't play with it and it's easy to operate once she's asleep. Going to purchase another for my nightstand lamp, and another Dubofu bulb as well!
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Top reviews from the United States

  • 5 out of 5 stars
    Perfect for vibrator massage tool!!!
    Reviewed in the United States on December 5, 2016
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    Solution to a myriad of problems! After trying all kinds of battery operated candles and small lamps to get the right lighting in the bedroom, I found this fabulous dimmer. It is perfect for a bedside lamp that is always too bright no matter what size bulbs are used. You can slide the dimmer switch all the way down and have the perfect mood lighting without all the glare and no batteries required! The switch is super smooth to operate and has a noticeable stop feel when you turn it all the way off. We also tried it attached to a Hitachi Magic Wand massaging tool and it worked PERFECTLY to slow the motor down just a bit to a perfect speed needed. It worked so well I'm going to order another dimmer in white to keep attached to the Magic Wand!

    Fabulous product!

    Perfect for vibrator massage tool!!!
    Perfect for vibrator massage tool!!!
    5 out of 5 stars
    Perfect for vibrator massage tool!!!
    Reviewed in the United States on December 5, 2016

    Solution to a myriad of problems! After trying all kinds of battery operated candles and small lamps to get the right lighting in the bedroom, I found this fabulous dimmer. It is perfect for a bedside lamp that is always too bright no matter what size bulbs are used. You can slide the dimmer switch all the way down and have the perfect mood lighting without all the glare and no batteries required! The switch is super smooth to operate and has a noticeable stop feel when you turn it all the way off. We also tried it attached to a Hitachi Magic Wand massaging tool and it worked PERFECTLY to slow the motor down just a bit to a perfect speed needed. It worked so well I'm going to order another dimmer in white to keep attached to the Magic Wand!

    Fabulous product!

    395 people found this helpful
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  • 5 out of 5 stars
    Works well and high quality.
    Reviewed in the United States on March 28, 2025
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    Works well. Looks like a lamp extension cord and is well made. Can be used with incandescent lamps, lights that have dimmable LEDs, as well as other things like plug-in massagers that are a bit too powerful. The slider works well and the output change in lighting is fairly smooth.

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  • 5 out of 5 stars
    Extremely convenient and easy to install
    Reviewed in the United States on January 24, 2014
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    A friend of ours gave us one of these a few years ago but it wasn't as well made. We used it for a lamp in our bedroom. When it wore out we realized how much we appreciated it so looked on line for a replacement. This one is better quality than the old one and because I'd had difficulty finding what I wanted, I purchased 2 "just in case." A couple of weeks ago we bought a new hanging lamp for our kitchen table. We don't always want the same light intensity, sometimes a low light to sit and talk and enjoy a cup of tea, sometimes to read the paper. The other problem we had was figuring out how to locate the inline switch where it was convenient.

    Finally it dawned on me that I still had the extra dimmer on the closet shelf. The cord for the remote dimmer switch was just the right length and worked out quite well. If these last even as long as the cheaper one we had we'll be quite satisfied.

    Update after 3 1/2 yrs of use.Both of these have been in daily use without a problem. I read a lot of the reviews for this product and have my own opinion, which may be wrong, I have not found either of these dimmers to be poorly made. Could one get hot in use? Yes, if the load is more than what it's rated for. Some of the complaints could be from the bulbs or fixtures. We like them enough that we'll be ordering them again very soon.

    One person found this helpful
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  • 5 out of 5 stars
    it worked for me
    Reviewed in the United States on May 28, 2011
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    This dimmer really did the job for me.

    I purchased an old lamp at an antique store, but there were two problems with the lamp: the switch is rather hard to reach, and I don't absolutely trust the wiring... I don't want to leave it plugged in when I'm not around.

    This dimmer switch was a great solution to both issues. The lamp plugs right into it. There is a long cord for the dimmer switch, so I can move the switch where I want it while leaving the light stationary. The sliding mechanism on the switch slides smoothly through the dimming cycle, but changes the friction level when it reaches the "off" position, so I know for sure when the power to the lamp is all the way off. Perfect. I can leave my lamp plugged into the switch with no worries about the old wiring.

    Two other reviews struck me as a bit off, so I wanted to mention my opinion on each matter raised.

    * One reviewer said that the switch has a little light, so she can find it visually when searching for it in her bed linens. The switch I received has no such light. This is actually better for me. Less power consumption, and I'm not one to misplace my switches.

    * One reviewer said that you couldn't dim a lamp plugged into the switch all the way down, but that it would go half-bright or more. This is true when turning the switch on: it jumps from full-off to half-bright. But then you can dim it back down to where the lamp is barely glowing.

    One other plus to mention: the switch works silently. No loud snaps when you're turning it on or off.

    Hope this info has helped.

    222 people found this helpful
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  • 4 out of 5 stars
    A Dimmer That Knows How To Dim
    Reviewed in the United States on January 10, 2018
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    It took a bit to get the product out of its package but that's ok. Despite that, the item looks great. It's a simple light dimmer that has only one function, to dim lights. The dimmer is about 6 ft. 4 in. in length, the switch itself is 3 inches. The dimmer switch stops about 3/10 to the bottom (as seen in the photo). There's a "stopping" point at the 3/10 mark that'll shut the light off. The slider is very smooth and doesn't have any disruptive stopping points. There are also small little "stubs" on the back of the dimmer control to prevent it from sliding on any surfaces.

    Normally I would add a pros and cons list to the items I review but this item has been splendid. It's a simple light dimmer that does what its supposed to do. I would truly recommend this product to anyone who want's to add a light dimmer anywhere in their household.

    DO NOTE: You will need a light bulb that supports any type of light dimming capabilities. Having a plain light bulb will cause odd and "possible" problematic issues with the electrical current flow to the bulb.

    A Dimmer That Knows How To Dim
    A Dimmer That Knows How To Dim
    A Dimmer That Knows How To Dim
    A Dimmer That Knows How To Dim
    A Dimmer That Knows How To Dim
    A Dimmer That Knows How To Dim
    A Dimmer That Knows How To Dim
    A Dimmer That Knows How To Dim
    4 out of 5 stars
    A Dimmer That Knows How To Dim
    Reviewed in the United States on January 10, 2018

    It took a bit to get the product out of its package but that's ok. Despite that, the item looks great. It's a simple light dimmer that has only one function, to dim lights. The dimmer is about 6 ft. 4 in. in length, the switch itself is 3 inches. The dimmer switch stops about 3/10 to the bottom (as seen in the photo). There's a "stopping" point at the 3/10 mark that'll shut the light off. The slider is very smooth and doesn't have any disruptive stopping points. There are also small little "stubs" on the back of the dimmer control to prevent it from sliding on any surfaces.

    Normally I would add a pros and cons list to the items I review but this item has been splendid. It's a simple light dimmer that does what its supposed to do. I would truly recommend this product to anyone who want's to add a light dimmer anywhere in their household.

    DO NOTE: You will need a light bulb that supports any type of light dimming capabilities. Having a plain light bulb will cause odd and "possible" problematic issues with the electrical current flow to the bulb.

    77 people found this helpful
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  • 5 out of 5 stars
    Perfect for a baby nursery!
    Reviewed in the United States on September 8, 2015
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    This dimmer switch works perfectly with our table lamp on a dresser in our baby's nursery. The lamp on the brightest setting is too bright when getting baby ready for bed or getting up for middle of the night diaper changes and feedings. The dim light is optimal to keep the baby drowsy so she will go back to sleep more easily. The dimmer is small and easy to hide if necessary. The white color is neutral and works well with the nursery's color scheme. The switch slides easily to the brightest setting. There is a little "catch" when sliding back down to the off setting and you have to make sure you push it down all the way with a bit more effort. This dimmer would also work great as a night light if you have a child who is scared of the dark. It is also best to use when getting your young child to bed as the dim light will help them fall asleep more easily. I highly recommend this product for people with babies and young children!

    One person found this helpful
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  • 5 out of 5 stars
    Worked fine for our super bright outside Christmas Lights
    Reviewed in the United States on December 19, 2019
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    My wife bought some new outside white LED Christmas lights. We installed these lights on the gutter and when the timer kicked in...WOW were these LED's bright. We've not had this problem before. They were so bright that they lite up the whole front of our house. At night the light shined inside our house and kept us up. I looked on AMAZON for a dimmer and order this. This has been perfect. I was worried it wouldn't work with the LED lights but it worked fine. The slider switch works fine and we were able to dim the lights to a perfect level. Unfortunately if a Boeing 747 needs to land near us it will no longer have our Christmas lights to guide them. I did order a second one for our inside tree since those lights were a little bright too. Both dimmers are working fine. Only suggestion is to make it 3-pronged instead of 2-pronged. All of the x-mas lights are 2-prong but we had them plugged into a 3-prong extension cord. I had some adapters laying around and all was fine.

    3 people found this helpful
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  • 5 out of 5 stars
    Easy to slide for the right amount of incandescent lamp dimming.
    Reviewed in the United States on May 14, 2026
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    Easy to use slide button. Durable. I have been using to dim incandescent lamp for night time use.

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  • 5 out of 5 stars
    What I expected
    Reviewed in Canada on June 11, 2020
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    I used it for a set of scone lights in the bedroom. Placed the switch on my night stand great dimer switch plus I don't even have to get out of bed to get the lights on or off. Works good no issues with me. Would buy again. A+

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  • 5 out of 5 stars
    Más de lo que esperaba.
    Reviewed in Mexico on August 9, 2020
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    Excelente, funciona perfectamente con series led. Permite crear un ambiente muy padre.

    Más de lo que esperaba.
    Más de lo que esperaba.
    5 out of 5 stars
    Más de lo que esperaba.
    Reviewed in Mexico on August 9, 2020

    Excelente, funciona perfectamente con series led. Permite crear un ambiente muy padre.

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  • 5 out of 5 stars
    Small dimmer that does the job
    Reviewed in Canada on August 21, 2020
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    Bought it to replace a older bulkier dimmer. Quite the nice little dimmer, that works great with my 3 x 40w lamp. No stutter or noise. I'm very satisfied.

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  • 5 out of 5 stars
    FÁCILES DE OPERAR
    Reviewed in Mexico on September 10, 2019
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    Yo uso este regulador (bueno compré tres) para controlar ventiladores y son muy funcionales. Los recomiendo en verdad.

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  • 5 out of 5 stars
    Great product
    Reviewed in Canada on February 13, 2022
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    Works great! Wish we had ordered it sooner!

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Product Summary: Lutron Credenza Plug-In Dimmer for Incandescent and Halogen Bulbs, TT-300H-WH, White

From Lutron

4.6 out of 5 stars, 9,801 ratings

Customer reviews

Price

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About this Item

  • Product only works with incandescent and halogen bulbs; to dim LED bulbs, see TTCL-100H-WH
  • Dims table and floor lamps
  • Easy slide operation allows you to adjust lights to desired level
  • Saves energy and extends bulb life
  • Designed for use with incandescent or halogen bulbs
  • Easy plug-in installation, no additional wiring necessary
  • 6' cord length

Product Description

Using Lutron's Credenza Lamp Dimmer, control any table or floor lamp instantly, Simply plug the control into the wall socket and plug the lamp into the control. No additional wiring necessary. Great for the nursery, bedroom and living room, the credenza allows you to set the lights to the perfect level for any activity. Featuring an easy to use slider, simply adjust the lights to the level that you want or slide to turn the lights off. Dimming the lights also helps to save energy and extend bulb life, while adding comfort and convenience to your environment. Anywhere there is a lamp in the home, use Credenza Lamp Dimmers.

Options Available

Color

  • White

Pattern Name

  • Dimmer
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Important Information

Bulb Voltage

120 volts

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