Questions tagged [led]

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

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6answers
3k 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). ...
0
votes
1answer
40 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) ...
1
vote
2answers
189 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 ...
2
votes
1answer
43 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. ...
0
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0answers
31 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 ...
1
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2answers
38 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: ...
0
votes
2answers
55 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 ...
0
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1answer
25 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 ...
1
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1answer
30 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 ...
0
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3answers
33 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 ...
2
votes
1answer
85 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 ...
0
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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 ...
0
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1answer
71 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 ...
0
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3answers
94 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.
0
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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 ...
0
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0answers
44 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 ...
0
votes
1answer
26 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 ...
0
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1answer
77 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 ...
0
votes
1answer
138 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 ...
0
votes
1answer
34 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 ...
0
votes
1answer
51 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 ...
0
votes
1answer
56 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 ...
3
votes
4answers
1k 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 ...
2
votes
1answer
66 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 ...
4
votes
2answers
118 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 ...
1
vote
1answer
341 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 ...
0
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0answers
23 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 ...
1
vote
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 ...
0
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0answers
33 views

New LEDs go dim

Last night, I got this made in China ornamental led chain lights for decking up my balcony. It was working well for a while until about an hour after operation when it became all dim. I've used such ...
0
votes
2answers
33 views

Switching off dimmable LED flashes then switches back on

I tried to swap out a 70W 240V incandescent bulb with a dimmable 8.8W 220-240V LED. The switch is a dimmer switch, which probably has an old leading edge driver (the building is old). This mostly ...
0
votes
4answers
52 views

Wattage of adapter for LED strip

I have LED strip lighting under my cabinets in the kitchen. Recently, they started flickering with noise. Worked fine for a couple of years. I believe it was the adapter that was faulty. Unfortunately,...
1
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1answer
94 views

Replaced fluorescent tubes with LED tubes, the LEDs only turn on when tapped

I bought FEIT replacement LED tubes at Costco, item number T48/840/LED/2, and swapped them in for fluorescent tubes (the thinner style). When I switch them on, the pairs of LEDs barely illuminate. ...
0
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0answers
29 views

LED track lights slowly turn on one by one only to work at a fraction of output

I'm having a weird issue with my LED track lights and I can't seem to put my finger on what exactly is causing it. They seemed to work just fine until recently. Now whenever I turn on the lights, they ...
1
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0answers
71 views

Why LED bulbs doesn't work?

I bought London 3 light lamp and put 3 LED bulbs 6W. and doesn't work. Only when I switch on then flashed for second but only 3 times. Normal lamp works without problem. There is 2 cables. 1 cable to ...
1
vote
1answer
277 views

LED Light fitting has started making clicking sounds after power outage

The other day we had a power outage and apparently surge that was enough to blow out the PSU on my computer. A day or two later I've noticed the ceiling light in my office is now clicking, regularly (...
1
vote
1answer
127 views

Do LED dimmers work with non-LED bulbs?

I've been switching to LED bulbs wherever I can for the past few years but one thing I haven't done yet is switch my dimmer switches over to LED compatible dimmers. One issue I've had trouble ...
1
vote
1answer
43 views

Fluorescent lights sometimes don't turn on

I have two T12 double-ended G13 2-pin 4 foot fluorescent lights in my bathroom. They often (maybe 1/3 of the time) won't turn on, with a very slight glow in one corner, then usually turn on after an ...
0
votes
1answer
33 views

Outdoor LED lights runnng dim/flickering

These lights are Kichler hardscape step lights and mounted and installed professionally through a stone wall. They are wired to a 300 watt multitap transformer and the other two lines work fine. The ...
15
votes
2answers
3k views

How much power do LED smart bulb wireless control systems consume when the light is turned off?

I've been shifting to LED light bulbs due to the energy savings but I've a question about the new smart bulbs that are controllable via Alexa etc. These need to be kept "on" via the switch for them ...
1
vote
1answer
40 views

Surge Protection for Line Voltage LED Fixtures

I'm installing 120v LED recessed lights in a room, and I'm concerned about them wearing out prematurely. I've had bad luck in the past with florescent lights on the same circuit as the refrigerator. I ...
0
votes
1answer
59 views

NEC code-compliant hard wired hidden LED driver

What is an NEC code-compliant way to install a 15A 120V dimmer switch --> driver --> led strip set up that enables the driver to be concealed or out of view but accessible for an in-wall lighting ...
0
votes
1answer
19 views

How to set up this LED R7s lamp?

I would like to install an Osram LED R7s lamp using this holder in my living room. Now I'm wondering whether I can just hook it up with the AC like I would do with regular LED bulbs or do I need ...
0
votes
1answer
81 views

LED light needs replacing every few weeks

I have two GU5.3 bulbs in my bathroom - one of them went off a month or so ago so I bought the following 3 pack: https://www.wilko.com/en-uk/wilko-3-pack-gu53-led-345-lumens-spotlight-bulb/p/0437672 ...
0
votes
2answers
88 views

LED Tape Lights Strobing

I have tape lights that have worked perfectly for 6 years. They were wired into a switch and I have no idea if, or how a transformer was used. They are not on a dimmer. Even you you turn off the ...
0
votes
2answers
97 views

Why Aren't These LED Bulbs Lighting?

I have a dimmable floor light with 6 G4 bulbs. I ordered a bunch of dimmable LED bulbs and now that they've arrived after weeks, they don't light up at all. If I take one bulb off and place a halogen ...
0
votes
1answer
73 views

Outdoor led wall panel - reacting when hit by a ball

I want to build a 10-15'' square or round wall panel and hang it on a wall. This I call the target. My son is supposed to hit it with a soccer ball. When he hits it the panel should change its color e....
1
vote
3answers
118 views

Does my LED replacement bulb need to screw in all the way?

This feels like a very dumb question, but I just bought some LED light bulbs for my chandelier. I'm looking to save energy and thought upgrading my light bulbs would be a simple task. Well it seems ...
0
votes
0answers
27 views

Low voltage/low power on 2 out of 4 LEDs newly installed

PROJECT - Recently replaced two ceiling light fixtures with (4) Easy-Up 6 in. Deep Baffle Color Selectable Canless LED Recessed Kit, made by Commercial Electric. Also installed new switches; lights ...
0
votes
0answers
33 views

Fan led light unusual situation

We got new fan (hunter) It came with 4 traditional 40W lights. I want to replace these with 4 led daylight lights 6 w equivalent to 40W, I think. When I replace 1,2,3 out of 4 lights they are well ...
1
vote
1answer
64 views

Fast flickering LED kitchen light fixture

I have a LED kitchen light fixture which has been working great for around 18 months. There's no dimmer on it and it's controlled by a standard light switch. A couple of days ago it started flickering ...