Originally Posted by Brownjm
LED replacement in Exterior Marker Lights:
Since Jayco hasnít starting using LED in their exterior lights, I thought this would be a great first mod. There is several different business that sell LEDís and all of them are at different prices. I always try to get what will work at the best price. So for this mod I went to Ebay to search out for LED replacements for the Marker Lights which takes a 194 automotive bulb. I was able to find a vendor who had 194 bulb equivalents (T10) in LEDís. This vendor has a 10pack of the LEDís for $7.10 with free shipping. So I tried these out and I loved them and found that these were going to work perfectly. Here is the link to the Ebay vendor: Click Here. These LEDís are a Cool White (temp color 6,000-6,500K) and are extremely bright. I donít know what the lumens are for the LEDís but the 194 incandescent bulb is 25 lumens
When installing these or any LED replacement bulbs, you have to make sure you get the polarity correct otherwise they wonít work. You will not hurt the LEDís by putting them in backwards. If they donít work just pull the bulb out and flip it over and reinsert.
I ordered 2 packs (20 pieces total) of these from the same vendor. I received them quickly. Of the 20, 3 worked flawlessly, 6 worked if held in "just the right spot", which is never going to be possible for a trailer bouncing down the road, and 11 didn't work at all.
I will say, of the ones that worked, the light was very bright, and the dispersion was excellent using the existing marker light lens/cap/reflector.
I'm wondering if the issue is the wires on the bulbs... they are hair thin... the plastic tab that inserts into the socket also seems a bit thinner than that on the existing incandescent bulb. Maybe I just got a bad batch. Going to contact seller and see what my options are.