Questions tagged [led]

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

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votes
1answer
215 views

Poor LED dimming performance

I recently bought this LED dimmer to drive these LED bulbs on my recessed lights. The fixtures have a built in transformer that drops the voltage to 12v, but I'm bot sure if they are MLV or ELV ...
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3answers
305 views

How to bypass ballast for T8 4ft LED tube?

I successfully bypassed a ballast to install a T8 4ft LED tube. But this time, I have a different kind of ballast (HOWARD INDUSTRIES M2/40RS-120, 60 HZ MAGNETIC BALLAST), one that can connect to 2 ...
0
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1answer
85 views

LED, 2 way switch wiring not working

I will give as much information as I can, but my knowledge is limited. There is a staircase with a 2 way switch. There are 10 LED lights throughout the stairs. They are using direct current. The ...
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1answer
233 views

What wire do I need to power 10m of SK9822 LED strip

I have 10 meters of SK9822 LEDs (60 LED/m) which I want to lead around my room. Because there's some furniture in the way, I'll need to cut this in a few pieces and create segments joint with a piece ...
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3answers
162 views

what are my options when it comes to updating my recessed lighting?

i want to start by saying thank you for the few that helped answer my question yesterday. to make a long story short....i am a fairly new homeowner and unfortunately did not have a father who was ...
0
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1answer
40 views

Good Solar Path LEDs for cloudy weather [closed]

I live in Seattle, where its usually rainy/cloudy for 8 months of the year. Do solar path LED lights make sense? If yes, could I have a recommendation? This was suggested to me: https://www.lowes....
0
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1answer
80 views

can I use a 10WATT LED BR30 on a recessed light trim that says MAX:9W BR30 LED?

i just bought a 6 pack of: GE Relax 6-Pack 65 W Equivalent Dimmable Warm White Br30 LED Light Fixture Light Bulb it says it uses only 10-WATTS on the back of the package. to make a long story ...
2
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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
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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
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1answer
949 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 (...
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0answers
39 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
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1answer
138 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
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1answer
112 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 ...
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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
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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,...
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2answers
65 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
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1answer
945 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 ...
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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
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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 ...
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0answers
45 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
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1answer
124 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 ...
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3answers
86 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 = ...
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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 ...
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0answers
54 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
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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
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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
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10answers
77k 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
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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
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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
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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://...
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3answers
154 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
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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
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1answer
57 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
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1answer
59 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
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3answers
26k 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
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1answer
116 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
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2answers
157 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
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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
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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
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3answers
505 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
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1answer
374 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
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1answer
124 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
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1answer
206 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
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3answers
319k 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
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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
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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
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0answers
62 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
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0answers
201 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
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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 (...