Questions tagged [led]

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

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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
87 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
105 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 ...
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2answers
620 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
456 views

Does this picture look like a burnt out LED lighting or is something wrong with the fixture itself?

Does this picture look like a burnt out LED lighting or is something wrong with the fixture itself? The apartment was built a year and a half ago with these types of fixtures put in. Is this just the ...
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2answers
5k views

Can you power LED strips from both ends?

I want to get 2 of these 500W power supplies I have several 5 metre reels of these 5050 LED strips (60 LED/m) Calculations show 1A per metre = 12 watt per metre so about 60 watts every reel. I was ...
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1answer
35 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
40 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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2answers
145k views

Why does an LED light turn on and off irregularly while the switch is in the on position?

We have had a LED light in the family room for several months now. In the past week it has started to act funny. We turn on the LED light and after a while it turns off and then goes back on and then ...
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1answer
146 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
49 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
117 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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4answers
6k views

LED lamp keeps glowing when dimmer is turned off

(I know this question has been asked before (here), but I followed the advice recommended by the users in that thread to help remedy the problem, but the lights still glow.) I recently bought ...
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1answer
57 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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3answers
2k views

What's the “correct” way to install LED drivers for accent lighting?

I want to install LED strip lighting behind crown molding in my office. In my particular install, I'm using 3 strips of SMD 5050 RGBW LEDs, which draw about 72 W per strip. From what I can gather, ...
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3answers
223 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
29 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
85 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
195 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
44 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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4answers
3k 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
71 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
188 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
717 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
26 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
35 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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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 ...
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2answers
39 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 ...
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2answers
359 views

LED lights with a dim light in open circuit

I was installing new LED lamps on my kitchen, which seemed to be functioning well. After turning off the lights, the newly installed lamps still had a dim light, that kept itself for quite long. I've ...
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4answers
54 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,...
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1answer
75 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....
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1answer
646 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. ...
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2answers
106 views

Is untreated aluminium suitable as an LED heat sink?

I'd like to have a 5m LED strip lighting directed upwards from around 1m height (would be behind a desk and other furniture). My idea was a simple U shaped aluminium profile (so it can be screwed to ...
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1answer
98 views

Low-voltage LED Light string flickers when turned on, flickers go away after 2 mins

We have several low-voltage LED light strips in our light-up cabinets in the kitchen. They have all worked fine for 3 years. One of them has now started to flicker for a couple of minutes when turned ...
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9answers
92k views

Why do my led bulbs state: not for use in totally enclosed luminaires?

I recently bought some nice inexepensive LED bulbs but I noticed the warning states: (see image below) not for use in totally enclosed luminaires I am guessing that it gets too hot but I find it ...
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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 ...
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0answers
73 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 ...
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1answer
927 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 (...
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1answer
491 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 ...
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1answer
91 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 ...
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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 ...
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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 ...
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1answer
184 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 ...
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1answer
20 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 ...
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1answer
85 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 ...
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2answers
3k views

Can I use another brand of LED driver with IKEA lighting?

I'm planning on getting IKEA OMLOPP lighting. However, since I would need multiple Ansluta transformers and they are quite expensive, I was wondering if its possible to use a regular LED driver ...
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2answers
229 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 ...
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6answers
25k views

LED light bulb flickering in socket, incandescent works fine

I have a couple of outdoor light sockets with built in motion detectors. These seem to work as you'd expect with regular incandescent bulbs- you can set a timer for how long you want them to be on ...

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