I have something like 48 halogen bulbs in the little round ceiling lights in my coach that get very hot and consume over 20 amps of 12 volt electricity when they are all on. It occured to me I could replace them all with LED's as I have done on my sailboat. Various dealers here in the US quoted me up to $14 per light.....so I went to EBay.......here is what I bought:
Item number: 120609644751 for $1.29 each and $1.00 S&H ea from Hong Kong . For around $109 I have replaced all those pesky red hot halogen bulbs with cool LED's that consume 140 mil amps each.
It was a steep learning curve.......the gold rim unlatches a quarter turn counterclockwise;carefully remove and take care of the glass crimped in place; this reveals 3 phillips screws; undo them and lower the fitting to a comfortable height;carefully pull the halogen bulb from the holder;pop out the pressed in place backing plate ; holding the bulb holder tightly in place force the pins of the new LED into the two pin holes after adjusting the spacing to fit. Some force is required here; test the LED and if it does not light reverse the wiring at the connectors; replace the fitting in the ceiling and screw carefully in place; carefully clean the glass and replace the gold rim....a small clockwise turn will lock it in place.
It took me a day however it was worth the effort. With all the ceiling lights ,kitchen lights,vanity lights etc switched on I am now using less than 1.0 amp compared to around 20 amps before. In other words when I am not hooked up and not on the generator I can light the entire coach and the overnight voltage drop is negligable . The indirect ceiling lights have many led's and consume around 4 amps so I do not use them .
If anyone wants to email me about this ......svpelican1@hotmail.com .
Some of the spade connectors I had to reverse were quite corroded and for this reason alone the exercise was well worth it. I am now looking to the exterior lights ,brake lights and headlights where a huge improvement in brilliance can be achieved that will not require upgrading the wiring to handle a larger load as would more powerful halogen lamps.
Jeremy 2000 Beaver Marquis Amethyst. C12 .