Questions tagged [led]

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

2
votes
2answers
2k views

G9 LED Won't Fit In Socket

I am a little embarrassed that this question might be ridiculous, but I feel like I'm losing my mind. I purchased this wall sconce and added in a toggle switch because there's no wall switch on the ...
1
vote
3answers
162 views

What is this light? How can I replace / fix it?

I moved into a new house recently and one of the lights in my new bedroom stopped turning on. I was surprised to discover that unlike the other lights in the house, it wasn't powered by a bulb, but ...
1
vote
1answer
828 views

Flat Iron Causing LED Lights to Flicker

My wife was straightening her hair today when she noticed that whenever the straightener element turns on, the LED lights in the bathroom flicker. The lights are on the same circuit as the outlet (...
1
vote
0answers
36 views

New LED Cans installation tripping breaker

I'm finishing my basements. Using these and these. I have 2 zones on same 15 amp circuit. First has 9 lights. Installed it and works fine. 2nd has 10 lights. Installed, switched it on and after ...
2
votes
1answer
107 views

LED Recessed lighting trim stuck

I feel like an idiot. I just bought my first starter home which happens to be a renovated home. The seller told me I have LED recessed lighting but I would like to change those lights to less harsh ...
1
vote
1answer
111 views

Can you use an LED Bayonet bulb in standard 40 or 60W bayonet fitting?

First time poster. In short have flipped all my halogen GU10 bulbs over to LED. Only non spotlight is a Bayonet fitting in my bedroom. The halogen (45W candle) in that went this week & I am having ...
0
votes
2answers
2k views

Why do my LED strip lights only work if I reverse the connection polarity?

Hi I have installed a small run of LEDs but they do not work at all unless I reverse the connection that goes directly on to the stip so that it's not lining up with 12v symbol. I tested everything ...
0
votes
2answers
2k views

LED lights “popcorning” (flashing on and off randomly)

My church installed some recessed LEDs connected to a Chauvet DMX-4 dimmer pack. The pack is connected to an Elation stage setter dimmer console so we can control from our sound booth. When turned off,...
1
vote
2answers
62 views

How do I choose which LED bulbs to put in my home?

General purpose LED bulbs seem to vary a LOT in price... from $1 per bulb to $40+ per bulb... and there doesn’t seem to be any tangible difference between them. I mean, some say they last longer, but ...
0
votes
1answer
915 views

Why do my LED bulbs have such a short lifespan? [closed]

I love LED lighting. I have played with them for years soldering up my own fixtures and DC power supplies. But these LEDs were from Radio Shack, and cheap. Now I am trying to light my abode with ...
1
vote
2answers
2k 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 ...
0
votes
1answer
2k views

Why does half of the christmas led lights dim down?

I have a strip of 3VDC (two AA in seires) christmas LED lights. 10pcs in one strip. I've been using a 18650 (4VDC), to make them shine brighter; after one week first half of them dims down from bright ...
0
votes
0answers
43 views

Will these low watt LEDs work with a 12V transformer?

I've inherited a pretty poor quality garden light kit that runs off a 12V/2500mA AC transformer. It supports x6 lanterns which each have a measly 5W halogen bulb. Barely illuminating anything. If I ...
1
vote
1answer
96 views

GU10 LED lights strongly strobing (no dimmer) UK

I realise there is a lot of information out there on LED lights flickering, however I'm struggling to find anything relating to this situation, i.e. GU10 fittings and a regular switch (i.e. not a ...
0
votes
3answers
81 views

LED bulbs in lamp sockets?

I have a table lamp that had standard 75 watt bulb (I believe in a 3 way socket) which suddenly lowered to about a 40 W, or less without my touching the switch. I replaced it with a new 8.5 W 60 W = ...
0
votes
0answers
27 views

Smart Lights - colour dilemma

I am trying to select a smart light for my room. But there is a confusion here. I want pure white light. The bulbs that I am showing in the screenshot show in their descriptions that they emit all ...
1
vote
0answers
51 views

PMMA vs PVC for opal led strip enclosures?

I am planning to install some aluminium profiles for led strips with matte cover diffusers ( opal / frosty). I found that the covers are made from two different types and I would like to know the ...
1
vote
1answer
37 views

Why, in the same light bulb, three of the six leds flick, and the other do not?

As the title of the post says: What could be the reason to have three of the six leds of the same light bulb, blinking? while the other three don´t ? Thanks so much for your help. Tyrus.
1
vote
1answer
43 views

Hue (led) bulb does't turn on when put in certain lamps?

Just acquired my first set of Hue lights (E27 type) and to my disappointment when I put them in my bedroom ceiling lamp they do not turn on. However If I try by putting them in a ceiling lamp in the ...
24
votes
10answers
74k 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 ...
0
votes
0answers
32 views

Replacing a cfl tube light with a led wiring help

So I was given the task of replacing old cfl tube lights in my room for brighter led (120 cm long) ones. Never done this before so I'd appreciate a walkthrough. I already took down the old tube light ...
3
votes
2answers
2k views

How can I reduce RF interference from LED light tubes?

? I picked up a dozen 3 bulb fixtures at the local habitat and installed them in my shop . Since the fixtures had no tubes I installed Sylvania Substitube LEDs . The lights work great , instant on and ...
0
votes
1answer
57 views

JA8 certified light source

We live in San Francisco, CA. We're attempting to replace overhead lighting in our kitchen area of our condo. I'm trying to understand this piece of the lighting code: According to http://...
1
vote
3answers
147 views

Individually addressable LED Strip lights

OK - in theory I have a BSEE degree from 1974 but in reality it was a Computer Science degree so I need help to make sure I wire (mostly in wall) this correctly and do not burn down my new house. And ...
1
vote
1answer
1k views

LED bulb always flickers or doesn't turn on

My bathroom is fitted with six traditional 20W GU5.3 / MR16 bulbs, and I want to replace them with the smart home equivalent. The only one I could find with the same socket type is the 5W Osram Smart+ ...
1
vote
1answer
54 views

LED MR16 replacement bulbs: How to evaluate brightness and color temp? [closed]

The main area of my house uses MR16 exclusively, mostly 50W bulbs. I have tried a few LED replacements over the years (none for the past 2 years), and have not been happy with brightness (not bright ...
0
votes
1answer
58 views

Can a 100' string of led lights be powered from each end hooked to one power supply [closed]

can both ends of a 100' strip of leds be hooked to the same power supply with out damaging the power supply of leds
3
votes
3answers
25k views

How can I replace failing ballasts in recessed CFL housings if I don't have access to the attic?

I have a set of recessed CFL (4-pin) lights and a few of the ballasts are failing (CFLs fail to start randomly, even after replacing them with new sets). They are NHPSIC-626ELAT, CFL (4-pin) fixtures....
4
votes
2answers
16k views

How to prevent blinking LED on a three way Lighted switch circuit with only one light fixture?

I have a stairwell that has only one wall sconce with two switches that are lighted when off. one upstairs, and one downstairs. I recently replaced Sconce, and added an LED 60 watt bulb; I triple ...
1
vote
1answer
108 views

LED ceiling fixture certain diodes blinking

My ceiling fixture has all of a sudden stopped working properly. Half the diodes are dark and the others are blinking. Oddly, the same exact ones on each strip work and don't work. I have included a ...
0
votes
2answers
155 views

Is this 110V switch “safe”?

This would presumably be installed in a door jam to turn a light on/off when the door is open/closed. It works on 110V with a maximum current of 2A. All of that is fine for my application (125mA LED ...
0
votes
3answers
2k views

LED Light bulbs always blow prematurely in ceiling fans

I've seen related questions to this - where the standard bulbs keep blowing prematurely in a ceiling fan. As a result of the general issues of wobbly fans and possible current instability, I got some ...
0
votes
2answers
3k views

dimmable led bulbs won't work in dimmable fixture

Our living room has 4 dimmable lights controlled by 1 switch and slider. Many years ago, we replaced the incandescent lights with fluorescent bulbs (we didn't know that fluorescent bulbs don't dim out ...
1
vote
3answers
493 views

Is it possible to increase CRI of LED lights/strips by using different ones together?

Several spectrometer-measurements of CRI of LEDs are available online such as for LED panels and for various LED bulbs and they show how the CRI value can hide serious issues with colour rendition. ...
0
votes
1answer
358 views

Ceiling Fan light enclosure - CFL only lights

We have a few ceiling fans at home with an enclosed lighting. There's a sticker inside it saying 2X20W max, CFL lights only. What is the reason they are restricted to CFL light only? I tried putting ...
0
votes
1answer
112 views

Weird LED light bulb issue

I'm looking for a good answer for an issue I'm having with some new LED light bulbs I got today. When I plug both 17w (150w equivelent) bulbs into the sockets in my garage they don't turn on at all. ...
0
votes
1answer
201 views

Do I need to dismantle the ballast on a metal halide bulb fixture before replacing with an LED bulb?

Is it necessary to dismantle the ballast on a metal halide fixture before popping in a corncob type LED bulb? Halide is 120w, LED will be @45w.
31
votes
3answers
313k views

Why do my LED lights stay on, even when the switch is off?

I have two LED lamps in my corridor, and when I switch them off, they keep emitting light (not very strong, but it's annoying at night). What can it be? How can I fix it?
1
vote
1answer
2k views

LEDs in a multi-bulb fixture only dim when installed alongside a single 60W incandescent bulb

I have a 'Sputnik'-style ceiling light fixture that accepts about 12 bulbs. I installed 12 LED bulbs into the fixture. However, the fixture was just too bright with 12 LEDs, so I installed a dimmer ...
1
vote
1answer
120 views

Connecting LED strips, Which plugs?

I want to make a LEDstrip(RGB, 300 LED, 3528, 5 meter) At the back of my 40 inch television. But I have some struggles finding out what I need for that. I have found this strip: LED Strip And I ...
0
votes
0answers
60 views

powerline adpater (ethernet) and recessed LED lights in the same room (same circuit)

I used to have computer, laser printer and a powerline adapter off the same outlet in the same room with no issues. I added recessed lights in the room, and now this trips the circuit breaker. The ...
0
votes
0answers
176 views

LED lights with programmable wall switch

I've recently replaced a standard 3-pole switch with the Honeywell RPLS540A programmable switch. The product says that it is not compatible with CFL or LED lighting. I foolishly did not read the fine ...
3
votes
2answers
14k views

Why are my LED bulbs flashing?

I recently replaced all eight bulbs on my chandeleir with dimmable led light bulbs. They work fine when on, but at approximately half power (dimmer turned half way through), the bulbs start flashing (...
1
vote
0answers
112 views

Electrical - LED E14 size light bulbs not working in European Chandelier

We have a European chandelier that takes 6 E14 size bulbs. We currently use incandescent bulbs without issue, but we would like to switch to LEDs. We bought some LED bulbs, but they don't work - ...
0
votes
0answers
932 views

LED ceiling fixture is super dim - why?

I'm stumped. I bought a Lutron Maestro MS-OPS2 occupancy switch and an LED light fixture for a closet when the old fixture's bulb burned out. Everything worked well for a couple of days, and then the ...
1
vote
0answers
71 views

(UK) LED lights flash once after being switched off

I had a nice kitchen light fitting with 5x 20watt halogen bulbs (G4), and the transformer blew. I thought that now would be a great time to upgrade the transformer/fitting to support LED lighting. I ...
0
votes
1answer
72 views

Is a 150 watt LED suitable for a pendant fixture?

I want to replace a 150 watt incandescent bulb with a 150-200 watt LED bulb in my kitchen fixture which is a hanging 12-inch diameter fully enclosed glass ball. The guideline for the LED say it is not ...
0
votes
1answer
114 views

Can replacing LED light bulbs cause electric faults somewhere else in the house?

Yesterday I replaced a few old halogen bulbs in the kitchen and the hallway with LED bulbs - B22 and MR16. I was reading that the MR16s could be tricky has they might need an LED driver, I ordered ...
5
votes
4answers
4k views

Multiple weak light bulbs vs one strong light bulb

I currently have a small room with a single CFL bulb at the center of its ceiling. The bulb lights up the whole room well enough. I encounter the problem though that when standing in front of the ...
0
votes
2answers
2k views

What do I need in order to install under cabinet lights?

I want to install hardwired, under-cabinet lighting, but I need some guidance on what kind of devices (transformers/drivers/adapters) I need to complete the project. I know very little about ...