Questions tagged [led]

Light Emitting Diode

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Blocking residual low voltage in a 12V automotive lighting circuit

I'm having a problem on my car that I'd like to fix myself. I'm not a skilled electrician, nor an engineer, only someone with some mechanical skills. I apologize in advance, for any mistakes or misuse ...
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1 answer
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led headlight replacement

I am contemplating purchasing a new vehicle with led headlights. If the led light become defective are they replaceable like their halogen counterparts ? To clarify what I am asking. Are the bulbs ...
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16 votes
6 answers
3k views

OEM LED tailights: white vs red LEDs under red plastic

Hopefully this is a suitable stack for this question. I cannot think of any other place to ask. This is about OEM tail lights with LEDs under translucent red plastic covers. I have noticed on several ...
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2010 Elantra Touring - LED dashboard display is flickering

This problem started two weeks ago. When I start my car, the LED display on my dashboard flickers and is dim. After I drive it a while (5-10 minutes) the LED becomes stable and bright. My local ...
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2 answers
431 views

Difference between P21W/5W and P21/5W bulb for tail lights?

I am looking to replace the rear lights on my 2021 Hyundai Elantra SEL with LED lights, since the base incandescants are not bright enough for my needs. Looking through the owner's manual, (Section 2 ...
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2 answers
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Halogen Vs LED Fog Light Illumination Very Dark Roads

I have a car that came with yellow Halogen Fogs as standard in Japanese. In Kenya we use fog lights a lot at night because our roads are barely lit even in cities, barely painted and lots of obstacles ...
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2 answers
825 views

LED bar power directly from battery?

I am soon going to install a LED bar on my Hyundai Tucson 2006. I want the lights to go on whenever the high beam is activated. I have located the fuse for the high beam, and intend to use an adapter ...
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620 views

Replacing a H19 headlight?

On my 2020 Kia Soul S the headlight (high/low) is a H19 bulb. When I look for (LED) replacement bulbs I can't really find any—the H category doesn't seem to go up to 19. What's going on here? Is my ...
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1 answer
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Warm white LED lamp recommendations? [closed]

Almost all LED headlamps I'm able to find produce white light. Can anyone recommend any Warm-White lamps by major manufacturers?
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1 answer
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310 watt light bar on 12 volt car battery [duplicate]

I am currently looking at a 32 inch 310 watt LED light bar for my 2010 Honda CRV. The light bar I am looking at is https://www.amazon.com/dp/B07MCNYXFT/ref=cm_sw_r_cp_apa_i_JpKPDbTR3J8R4. The wiring ...
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1 vote
1 answer
107 views

Load resistor heat issue from front turn signal lights serving as parking lights at night

Thinking of switching all 4 turn signal lights to LED from halogen and I will more than likely need some resistors due to notorious hyperflash or LEDs with built-in resistor as I prefer not to splice ...
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How do I wire in a capacitor into an LED circuit to eliminate a flicker issue?

I have led running lights on my truck (with a resistor already inline) and am encountering a flicker issue ONLY when the engine is running. I was thinking a cap would fix it.
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1 vote
1 answer
87 views

2003 Ford Expedition XLT 4.6 headlights/interior lights failure

I changed my headlights (low/high/parking) to LED, didnt like though thay all worked. Then changed to Xenon HID Halogen, didnt like though they all worked. Change back to regular Halogen & now the ...
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1 vote
0 answers
1k views

LED's Headlights turning off and on

I recently purchased a pair of Zdatt H13 9008 LED headlights for my 08 Dodge Ram 3500. After they warm up 3-4 minutes they turn off and on repeatedly. What am I missing and how do I fix this problem? ...
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3 votes
1 answer
154 views

Brake/position LED Lights

I have a problem with the rear right brake/position light on a 2005 Mazda3. Same LED lights (8 led) shine dimmer when lights are on (state 1) and goes brighter when brake are pressed (state 2). My ...
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1 vote
2 answers
73 views

LED headlight set?

I have a question; my car is 2017 Hyundai Elantra. The output of halogen lights is not good on the highway. I really can't see the road and my car is new and under the dealer warranty. I decided ...
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2 votes
1 answer
98 views

underseat lighting that goes on when door opens or with switch

I'm looking for a wiring diagram that will allow my under seat LED lights to turn on when the car door opens, or with a switch. I am planning on tapping into an existing light that goes on when the ...
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1 vote
0 answers
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Bulb turn signals with all other lights LED?

I've noticed on some newer cars (sorry, no specific examples), that they often have LED brake lights, but still use an incandescent amber bulb for the turn signals. Is there a reason that a ...
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  • 166
3 votes
2 answers
2k views

12V relay circuit not working

I have a pair of LED lights wired on my truck to a 12V 4-pin relay all correctly with a switch. The system worked great every time until I decided I wanted to add a small 5mm LED, so when I turned ...
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1 vote
1 answer
77 views

Push button when LED comes on

I have a button in my Electric car, with a small LED in it. By default when I turn on the car, the LED in the button lights up. Pushing the button turns the LED and the Fake engine noise OFF. The ...
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2 votes
1 answer
260 views

Can I use a Jump Starter Battery Pack to directly power LED spotlights on a motorbike?

The battery on my 125cc motorbike isn't powerful enough for any extras. Can I use a jump starter power bank and wire some extra LED lights directly to it as you would to the main battery?
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2 votes
1 answer
1k views

Mixing LED and regular light bulbs

I have a 2004 Dodge Sprinter that currently has incandescent bulbs all around. I want to replace some of the lights with brighter LED bulbs. Can I mix LED and incandescent bulbs? Does this change the ...
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2 votes
4 answers
4k views

2016 ford explorer signature LED headlight issues

My passenger headlight is out and the drivers stays on for good 10 min after the truck is turned off and it will blink several times. Also while driving the drivers light will change from daytime ...
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1 answer
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Does H1 LED Bulb Fit in to existing H1 HID Bulb Projector?

I have HID H1 6000K Bulb. Recently one of them gone bad. So, I'am Planning to replace the HID bulbs to H1 LED. Question 1 : will LED h1 fit my existing H1 Projector? were i had Previously installed ...
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4 votes
1 answer
404 views

Planning to replace hid bulb to led H1 connector

I have Honda city 2016 model (Indian version). I had changed the factory halogen bulbs to AES projector with H1 connector type. Recently one of my hid 5000k bulb gone bad. I'm planning to replace ...
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1 answer
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Addtional LED lightstrips for cars

I am looking to add extra LED light strips to my car to be used as DRL. The car currently have DRLs that will switch off when the headlights are turned on. I want to have the new light strips always ...
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2 votes
0 answers
186 views

connecting led halo lights on 2006 accord

I am installing Spyder projector LED halo headlights on a 2006 Honda Accord. Following the install instructions I twisted together the two red wires and black wires respectively from the LED halo ...
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2 votes
3 answers
3k views

Why do LEDs go out on (boat) trailer tail-lights?

Everyone knows that LED tail-lights are very bright and are not supposed to "burn out" like incandescent bulbs. In automotive tail-lights things seem to be going according to plan. However, on (boat)...
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2 votes
0 answers
71 views

Reccomendations for non-HID LED headlight replacements?

I do a load of night driving during my commute, clocking 4 hours a day during the winter. I have been using the Sliverstar Ultra bulbs, but due to my night drives, I am blowing though a pair every 6 ...
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7 votes
3 answers
129 views

A very simple circuit to supress 12v pulses from illuminating some LEDs

I have recently acquired some Cree LED headlight bulbs for my ageing 5-series. They are amazing enough to actually make the vehicle safe to operate at night. The stock incandescent bulbs were woefully ...
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1 vote
2 answers
21k views

What diode for 12v automotive circuit...?

SUV with 4 interior light pods in a row from front to back. All light up with stock interior light switch. All have LED replacements for the old stock bulbs. I have an auxiliary 12v battery that I ...
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2 votes
1 answer
619 views

Automotive Relays - Are they water resistant? Proper placement?

I have installed LED lights in my toolbox in the bed of my truck what are you if the relay is waterproof and where should I install the relay?
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4 votes
3 answers
159 views

What causes my LEDs to briefly and faintly turn on?

I replaced my car interior light with a Chinese LED strip about 80 cm long, the usual ones with 3 LEDs in series with a 75 ohm resistor. This is the circuit. The diode helps drop some excess voltage, ...
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5 votes
2 answers
3k views

Why is my LED turn signal "randomly" blinking too fast?

I have recently changed my motorcycle front blinkers from OEM to LED ones. I did not add resistors: I just plugged the new blinkers into the on-board computer. The right blinker is blinking correctly,...
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0 votes
1 answer
185 views

How does color temperature influence headlight performance?

When driving at night with an LED spot light, generally them come with a bright white, 3 watt LEDs. Traditionally spotlights have been more of a warm white thanks to being halogen bulbs. If you ...
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1 answer
209 views

automotive LEDS specified as 6v-36V required 9 or 12v... why?

i've been searching for a 6v automotive LED bulbs (for a vintage vehicle) and note that many are specified as 6-36v, or even 6-85v input voltage. but then they get listed as 12v working voltage.... ???...
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5 votes
4 answers
159 views

LED Blinkers - Burning out on 1976 Triumph Bonneville

I have a 1976 Triumph Bonneville and recently replaced the garbage LED chips inside the eBay signal lights with brighter Cree LED chips. I bench tested the circuit shown below with a 12v bench supply ...
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4 votes
0 answers
163 views

New LED 3rd brake light stops working

Swapped out LED taillights and third brake light on my '05 Sierra. Tail lights work fine but the third brake light will work when first plugged in but after a short while the cab lights don't work.
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4 votes
1 answer
919 views

How to fix 2007 Mercedes SLK daytime running lights?

I've got a 2007 Mercedes-Benz SLK (R171). My daytime running lights have died, and I'm a little puzzled as to how to go about fixing them. The stock headlights have been replaced by aftermarket ...
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  • 251
6 votes
2 answers
2k views

Replacing interior lights with LEDs (2003 Jeep Liberty)

I replaced the bulbs in the interior dome lights in my jeep with LED's. In front, there are two lights - driver and passenger. In back, there is one. The old lights were too dim, the new LED's are ...
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  • 161
3 votes
0 answers
167 views

Volvo V60/S60 <2012 LED bulb replacement

The LED bulb unit that sits between the headlamp assembly and the rad has gone. I have bought a new complete unit (two led strips inside) but cannot see how to unplug the old one and plug in the new ...
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9 votes
2 answers
5k views

Mini Cooper 2003 - Changed lights to LED, insanely fast indicator lights now

Changed all the lights on my Girlfriend's Mini Cooper last weekend, since then the indicators have been going crazy (assuming due to power consumption being very low). I know you can replace the ...
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9 votes
1 answer
532 views

How can I secure the power block for my LED headlights?

I purchased an LED low-beam conversion kit and installed it yesterday in my 2010 Forester. The installation was easy enough, other than having to move the battery to get enough space to fit my ...
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2 votes
0 answers
39 views

OEM cables don't match new LED mirrors, need specialized adapters?

I replaced the mirrors on my Honda with LED mirrors after one of them broke off and I don't think the cables match, so I'm unable to control the mirror electronically. A few other sets of cables came ...
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