Ok new to the group. Ok now that's out of the way here is my thing. I have a 2009 Harley-Davidson Rocker, I want to add a third brake light to the rear of the bike. The rear lights are all LED, running, brake and turn. I found a tombstone light that looks cool but it's incandescent bulb. Put 12v to it and it works fine, wire it to the bike and nothing. With the rest of the rear lights being LED do I need to use one that's LED to work with what I have ? Or can I change out the 1157 for a LED replacement and get it to work? Sorry I'm new to LED 's any help will be appreciated.