They light up very bright when attached directly to 12V, but in the dome lights they just flicker dimly. Any ideas?
1008645
When they're clipped into my dome lights in my 2000 Subaru Forester, they work perfectly. and since you know they work when attached to 12VDC as well, the problem appears to be in the connection where the light socket exists. Either they're not seated correctly and only partially in contact (in which case you can reorient them until they're bright), or there is inconsistent/insufficient current getting to that socket in your car. You can verify whether the right amount of energy is getting to the dome light socket by using a multimeter. If you don't have one, you can attach wires to the socket's + and - nodes and connect them to the + and - ends of the bulb directly, and see if they power up. if they do, then you can be sure that there's simply a problem with how they're seated in the dome.
163336
I wired mine into the fuse box and use a switch to turn them off and on. You should try to wire them into the dome light somehow using the door latch switch
2037768
Brightness of the LEDs is controlled by the voltage level and current available. First verify that you have the LEDs connected to 12v source. The LEDs should be able to operate with 14v maximum. Unless you are using a very small transformer or have a resistor in the circuit there should be enough current. If you connect the LEDs to a 9v battery they will operate but be pretty dim. They should be much brighter on 12v but these strips are no where near as bright as what come on new cars as daytime running lights or turn/brake signals. Theses strips have too few LEDs to compared to the kind on cars. I use them as accent and to augment my turn signals on my motorcycle. Brightness of the LEDs is controlled by the voltage level and current available. First verify that you have the LEDs connected to 12v source. The LEDs should be able to operate with 14v maximum. Unless you are using a very small transformer or have a resistor in the circuit there should be enough current. If you connect the LEDs to a 9v battery they will operate but be pretty dim. They should be much brighter on 12v but these strips are no where near as bright as what come on new cars as daytime running lights or turn/brake signals. Theses strips have too few LEDs to compared to the kind on... » Read More Brightness of the LEDs is controlled by the voltage level and current available. First verify that you have the LEDs connected to 12v source. The LEDs should be able to operate with 14v maximum. Unless you are using a very small transformer or have a resistor in the circuit there should be enough current. If you connect the LEDs to a 9v battery they will operate but be pretty dim. They should be much brighter on 12v but these strips are no where near as bright as what come on new cars as daytime running lights or turn/brake signals. Theses strips have too few LEDs to compared to the kind on cars. I use them as accent and to augment my turn signals on my motorcycle. « Show Less
1746865
It is probably the crappy dimmer they use. I bought a cheap in-line switch and simply cut the dimmer-switch out. I also replaced the bulb with a 2.6 watt LED from ebay. Now I leave it on all of the time and it uses almost no power. (If you go with an LED try to get the shortest one you can. E12 candelabra base. And small LED's do not work well with a dimmer. They tend to flicker.) Good luck
228506
I have the same problem with my dome light , mine is under the eve of my porch out of the elements and the batteries do not last 60 days at best.
1341813
They shouldn't flicker unless there is a loose connection of some sort. Are you experiencing a problem with them? Thank you, Ty Devereaux OffRoad Innovations
1271035
mine were 12v and lit up the service van really well, I just hooked them into the wire with a Y connector just above the dome light switch at the rear doors and secured them to the underside of each shelf with wire ties.
470464
Hello.They look more more difficult than they really are.They give you multiple adapters so when you pop your lens off of your dome light you can tell which one you will need.You take your bulb out and replace it with the adapter that fits then plug the light into the adapter.If it doesn't work turn the adapter around.Then peel the backing off of the light and stick it.hope this helps..
2092032
Hmm I have the same ones and they work perfect for me. It sounds like you may want to try to get your waranteed. When all the led's are lit these are super bright.
448
Check your connections. I have found that these lights are finicky. The slightest movement (like replacing a bulb) affects the connections. Play with the connections when on and you'll find they work.
1340925
If you have access to a multimeter check to make sure your batteries are actually charged. If not maybe someone you know can help you or perhaps visit a local electrical supply store, Radio Shack, etc. If the batteries are fully charged, do make sure you have then installed correctly. I can't tell you how many times I've installed batteries incorrectly even though I absolutely know to check which way they go before I put them in. If your batteries are charged and they're installed correctly, then I can only assume it has something to do with the circuitry of your headlight.....could be a lot of things. Sorry to tell you that my headlight did not last long and its problem was poor quality circuitry....the circuit board in the battery compartment self-destructed. It fried itself one day while I was wearing it. If your light is now garbage, try this one: Weiita H807 Starlight LED Headlamp, 300 Lumen, available on Amazon. It's similar but much better IMO, plus the company is great to deal with. Hope this helps.
133162
I've left them on for several hours before and haven't had any major issues. It was for photography rather than video. The overhead light did short but I think it had to do with the power source, not the light itself.
1561412
This has never happened to mine. Sounds like a bad light. I personally think they are great!
449850
These are a little bluish, maybe around what you're looking for. I'd guess that they're a little higher than 7000K. Felix is correct that these are very bright when run at ~13.5 to 14.0V, I run mine at 13.8V. Lahiru is dong something wrong. FYI, if your strip is longer than, maybe, 10' I'd run the supply wires to both ends. If I ran the full 30' strip I'd run the supply to both ends and the middle. Why? Because there will be enough of a voltage drop along the copper traces on the strip that the LED's on the end will be noticeably dimmer if you only connect to one end.
1681909
Connection might be faulty. Try to see first if your old lights work and if they flicker it will mean that your wiring somehow are burnt up. If they don't flicker then you should do one side HID and the other regular if the either side flickers it means you have a shot wire on the HID side. Do the same but reverse. If it doesn't flicker, then your best bet would be that the ballasts have gone bad. By flicker I mean constant flicker, HID's take a little bit to warm up and will flicker once or twice.
2214930
The lights only come on with engine running and vehicle in gear. If they still are not working then you may need to rotate the plugs. (The polarity is backwards) also are your connectors burnt. GM has a problem with the connectors burning up from the bulbs burning so hot. LED's use less heat but you may need to replace the connectors
768183
The problem is either your voltage is dropping off or that you have "dirty" power going into the lights...you can solve the dirty power problem with a small capacitor between the power supply and the terminals on the lights