Questions tagged [led]

For questions regarding lighting that uses LED (Light Emitting Diode) technology.

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1answer
49 views

Can I use sprinkler cable for LED light strip extension?

I have a bunch of leftover sprinkler cable, 18/5 solid copper. The product description from the manufacturer says it can also be used for low voltage landscape lighting. I need to run an extension ...
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2answers
41 views

I want to change my light bulb to an LED multicolored light bulb

I want to change my current light bulb (which I believe to be a florescent, though I am unsure) in my bedroom to an LED one so I can make it change colors. I am looking at buying this bulb: https://...
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1answer
51 views

Will high wattage LED bulb work with this light fixture?

I am looking to replace the LED light bulbs in my ceiling downlights with some stronger ones. Specification of existing lightbulb: LED, GU10, 5W, 240V Specification of light fixture: KR (KangRong), ...
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3answers
2k views

Wiring an in-line on/off toggle switch on an LED lamp with additional controllers is not working as expected

I purchased a USB powered (5 volts) LED lamp that included a controller with (from bottom to top in the picture): power switch brightness decrease warmth selector brightness increase. I am ...
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0answers
52 views

How can I meet NEC code for Class 2 at the power supply with multiple strips of LED lighting?

...The Project... Install 94 feet of perimeter lighting around a kitchen/dining/living space. The desired product is a color tunable LED strip. Possibly this product but I could use an equivalent ...
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2answers
94 views

Is there something like a power switch that I can control from a computer?

I need to control a LED light from a computer program that I am writing, i.e. I want to turn that light on or off from the computer. Is there some kind of power switch or alike that I can connect to ...
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0answers
105 views

Why does an LED ceiling fixture glow even when switched off?

I've just installed an LED ceiling fixture, and it glows even when switched off. I'd estimate it as about 5-10% of the switched-on intensity. The answers I've found here on DIY.SE to similar ...
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2answers
48 views

Correct Sealant / Caulk for fixing LED Down Light

I have recently had LED down lights installed in my ceiling. In strong winds I am finding some granulated loft insulation is blown through around the light fixings. I would like to seal around them -...
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1answer
45 views

How do LED light fixtures accomplish multi-spectral (switch-selectable) color temperature capability? [closed]

This is more of a technology question perhaps - I was wondering how the LED light fixtures that feature switchable color temperature work. Do they contain multiple sets of LED's that emit different ...
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1answer
27 views

Can my LED fan light that's hardwired to a dimmer switch also be controlled, ON/OFF, by the remote it came with?

I have two switches set up for our LED remote fan. 1st switch: to power on the unit, which still allows me to change the speed settings on the remote. 2nd dimmer switch: to power the lights, but, ...
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2answers
101 views

Any issue with using 16 gauge speaker wire for powering LED light strips?

I have a roll of this speaker wire, if I'm powering regular 12v and/or 24v LED light strips, (non-RGB, only has 2 wires), is there any issue using it? It's a thicker gauge than the normal wiring used. ...
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1answer
75 views

Lighting a Room with LED Light Strips

I want to light an entire room (~300sqft) using light strips as there is no wiring available for traditional lights. I want to make 3 rectangles on the ceiling ("zones") that I can control ...
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2answers
147 views

How do you achieve this stairway 'chaser' effect with an LED light strip?

Here is a gif showing it in action, once the motion is detected, the strip slowly lights up directionally from bottom to top, how is this achieved? I can't seem to find how this is done: Looping GIF ...
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1answer
36 views

Voltage based switch. Ceiling fan on dimmable lights

Excuse my ignorance in the subject, below i will try to explain what i have and what i am trying to achieve. In my living room I have about 15 led dimmable recessed lights on a dimmable switch. From ...
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4answers
189 views

How to select the most appropriate indoor LED bulb color

I want to buy LED bulbs to install in all the rooms and I don't know What are the criteria to select the proper ones (for eye and physiologically good). How to distribute them in every room ( I mean ...
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1answer
30 views

One circuit of lights comes on dim when another is switched on

We have three separate circuits of LED lights in close proximity to each other- one in master bath, one in master bedroom, and one in master closet. All are on dimmers. When any one of these three ...
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2answers
58 views

Re-wiring plugged shop lights to LED panels

DISCLAIMER: I am NOT even close to an electrician, but I like to think I am fairly intelligent and can follow directions well... I am in the process of remodeling my basement. I have a suspended/drop ...
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0answers
38 views

LED lamp is flicking. How to troubleshot?

I have this led floor lamp and the upright light/bulb has started to flicker yesterday. The lamp has been already a little bit problematic because recently the LED driver broke and I have to order ...
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0answers
25 views

Led 57884-4 one light socket dim's when the light is on

I have purchased led 57884-4.. It worked great for 3 months.. But since one week ago one of the leds doesn't 'light' up as it should. I've tried changing the 'bulbs' but the problem persists on that ...
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2answers
67 views

Is my dimmable LED tape compatible with any 12V/2A driver?

I bought a fairly cheap LED tape kit that comes with a driver and dimmer. The dimmer is a small inline module that sits between the driver and the LED tape. The driver has 12V/2A output and is ...
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1answer
58 views

240Vac LED Off-Peak power flicker

Aussie from NSW here - We recently changed our lounge room light fixture to a modern 6 bulb setup, connected it up to see the nightsun that it was at 640lm per bulb. Quickly installed a dimmer only ...
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0answers
46 views

LED lights won't come on at the same time

I renovated a kitchen and put in 4 recessed LED lights. They are daisy-chained, 3-way, with an LED compatible dimmer (just one, other switch is just a 3-way switch) When I turn on the lights (from ...
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6answers
4k views

Why do LED Lights Flicker on Low Dimmer Setting

I just wired up the following schematic and both sets of LED recessed lights will flicker when dimmed below full power. It doesn't matter what the other dimmer is set to (full power, low power, off). ...
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1answer
41 views

What width of wire for 24V DC LED driver?

I bought a 24V/25W LED driver from a local shop and the sales assistant sold me a short length of 20AWG control wire to go with it. In order to buy more wire (elsewhere) I looked up the UK (mm2) ...
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2answers
220 views

Does removing an LED bulbs from fixture decrease energy usage?

Noob question alert. Electrics have always been my weakness. If you have a 6 bulb ceiling light, with 6 LED bulbs each with 5w, and you remove 3 of them, does this half the energy usage when the ...
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1answer
114 views

Not to be used in totally enclosed or recessed luminaires

My question centers or the word "OR". Should this be thought of A) totally enclosed luminaires OR totally enclosed recessed luminaires B) totally enclosed luminaires OR recessed luminaires. ...
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0answers
32 views

How prevent the first bulb in a series of two LED ceiling bulbs from going out for 30 seconds once every ~5 minutes

Question How do I prevent the first bulb in a series of two LED ceiling bulbs from going out for ~30 seconds once every ~5 minutes. Background Prior to a couple years ago, I had two working ...
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2answers
54 views

Dimming Constant Current LED driver

We have a "Tsong LED Panel": Model: SRPL60X120-60WH Type: 4014 - 4000K Input DC27-42V/1350mA - 60W With the LED driver: Model: SR60-01N-042V1350 Input Voltage: 200-240VAC 50/60Hz Input Current: ...
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2answers
146 views

Fix blinking LEDs with a motion sensor (when off)

I have bought a new motion sensor for my corridor LEDs. The lights turn on fine with it, however, when the sensor is set to OFF, the lights blink indefinitely (a few times per second) and never ...
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1answer
31 views

Mixed Recessed LED Lights Not Working

I purchased a home that has recessed lighting throughout. They are the LED lights that clip into a standard light bulb screw-in socket. They all point straight down and I wanted to purchase some that ...
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1answer
33 views

Dimmable LED lights on a dimmer switch, they won't come on at all anymore. Do they still work?

Apologies for the wall of text in advance. I bought three 40W Energizer dimmable LED lightbulbs for a dimmer switch at home. Once I screwed them in, I noticed that when I turned on the switch, there ...
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3answers
35 views

LED bulb replacement in Dusk-Dawn Outdoor 175W light

My old metal halide bulb finally died after 30 yrs use. Considering switch to LED corn bulb. However, the seller website states "Connects directly into E39 Mogul Bases. Just screw in. Please note that ...
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1answer
109 views

Why does an LED in a Can Light go out after Several Minutes?

I looked at this question which seemed to be the closest to resemble my situation, but it's just not a close enough case. I have a bunch of ceiling lights that are MR16 20W Halogens. I've replaced ...
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1answer
47 views

4' flush-mount LED light won't dim

I have purchased two identical 4' flush mount LED lights and two identical dimmer switches. The first set I installed in the master bathroom works perfectly. The dimmer switch goes from very low ...
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1answer
77 views

Recessed LED lights need to be turned on twice to work

I recently installed recessed LED lights in by basement. On two of the three runs I have an issue that when I first turn on the lights some of the lights only produce a low dim, and don't react the ...
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3answers
124 views

What can I use for 25 watt bulb replacement

Can I use a 60 watt led bulb that uses only 7 watts to replace my current incandescent 25 watt bulb? Never mind the lumens, it can be dimmer.....thanks.
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0answers
34 views

Trouble with LED dimmable bulbs in fan

I recently purchased LED candelabras to replace my incandescent bulbs in my fan. When I installed just one bulb everything worked perfect (fully dimmable/full power). I didn't like the color ...
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0answers
45 views

LED recessed fixture is consistently malfunctioning in a specific location

My parents just installed LED recessed lighting kits (integrated LED fixtures containing the diode and driver circuitry), and they are having a very strange problem. One toggle switch controls about ...
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1answer
27 views

led dimmer lamp retrofit

I'd like to retrofit an existing lamp with a dimmer dial built in to support dimmable LEDS. It does not seem like I can easily remove the dimmer or, even if I could, find an LED dimmer that will fit ...
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1answer
80 views

LED Replacement for T5 Fluorescent lights

I have several T5 fluorescent lights in my kitchen, serving as under-cabinet lighting. Some of them are bust, and I’d like to replace them with LED strips instead. The power for these lights are ...
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1answer
149 views

Breaker Immediately Trips, Need Help Troubleshooting Why

I installed 4 Lithonia LED recessed lights on my living room 15 amp circuit. Everything was working great yesterday when doing final testing. I left the breaker off overnight as I was planning to do ...
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1answer
37 views

E12 led smart bulbs don't work in ceiling fan

I tried replacing two e12 bulbs with led e12 smart bulbs but with both leds the lights don't turn on with the wall switch or smart phone. Here's the weird part. If I put one incandescent bulb in ...
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1answer
54 views

What is proper way to wire hard wired LED strip light power supply/controller/driver?

I'm considering LED strip lighting for a pantry and for the stairway to the basement. I see three types of power supplies for the strips: with an AC plug, with pigtails, and with screw posts. The ...
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1answer
64 views

How directional is LED strip lighting (with a diffuser)?

Background: My pantry (~ 2' deep, 4' across, 8' tall) consists of a bunch of shelves that are 1/2 the depth of the pantry. It has one of those old white pull chain porcelain fixtures on the ceiling ...
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4answers
2k views

Is a grommet needed for romex into this metal junction box?

I bought a 6-pack of these LED downlights. The metal junction box has knockout holes to run my 14-2 (with ground) wire. I was surprised that the J-box didn't come with grommets after knocking out the ...
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1answer
69 views

Why do I have multiple connections on a single common connection?

I'm in the process of trying to add a smart relays to my light switches across the house. In most cases I've managed fine and I understand how the circuit works, to me that is critical before I make ...
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2answers
149 views

LED bulbs flickering

We have a multistory apartment building where the hallway lights were switched from CFLs to LEDs. These lights are continuously on. Originally the LEDs were SATCO 15W bulbs. These lasted about a ...
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1answer
475 views

Why do LED lights get brighter when adding additional lights to the dimmer circuit?

I just installed new recessed lighting in my finished basement, wiring 4 fixtures with dimmable led bulbs to a dimmer switch. Additionally, 2 of the fixtures are on their own standard switch after the ...
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0answers
24 views

need to run 60ft high lumens led strip as cove lighting in recessed ceiling. also want to do rgb strip. need suggestions

I have 20+20+10+10 feet rectangle floating ceiling. i have pool table at that spot. so, i want to do bright white led strip which can run 60 feet. i also want to do rgb strip for that length. should i ...
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1answer
34 views

LED light with built-in switch; installing auto-timer between switch & outlet,

LED aquarium light (a bar with many small bulbs) with manual switch built into cord; Customer requested automatic timer. Placed automatic timer between LED's plug & wall outlet. Functioned well ...

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