I have incandescent Progressive fixtures as shown above but did not want to change out the fixtures and be tied to failure of the individual LEDs or the driver circuit (which does happen). Previously in a Winnebago View motor home I had these fixtures in, I fabricated flat plates to replace the domed reflector plates and installed M4 Products flat plate LEDs, which worked very well. I was not willing to do that time time around (no two of the corner cutouts of those Progressive reflector plates are the same!!!) and I merely installed M4 Products LED replacement lamps. The reflectors actually scatter the light better than a flat plate does and I am quite happy.
ALPLATE-48-5630-NW Natural White Double Aluminum Plate
I use exclusively M4 Products
M4 LED Products because of the quality and consistency of color from one type of bulb to another. Most of their LEDs are available in a warm white, daylight, and cool light. I don't like the yellowish or bluish light and prefer the pure white of their daylight bulbs.
This Bigfoot trailer had a odd mixture of LED replacement bulbs in it when I bought it, and many had dead LED elements and there were all the colors of the spectrum in it. I removed them all and bought M4 lamps and took the best of the old ones and installed them in the lights in the cargo pod on the front and the storage bin in the back. I trashed almost all of the remainder.
The Bigfoot came from the factory with all LED exterior lighting except for the backup lights. These are Bargman fixtures and I changed the BU lights out to a Bargman LED replacement and I had to add red reflectors to replace what was removed in the conversion. I also have Red/White DOT tape on the rear bumper.
The biggest offenders are the reading lights. Usually they are 10 watt halogens and I install side pin LEDs in their place and shave the power consumption to almost nothing.
G4 Double Pin Retrofit LED Lights My motor home had a total of 10 of the 10 watt halogen lights. After I changed them out, I could turn on all 10 and use less current than a single halogen did.
I replaced the 1141 lamps with
1156-33-3030-NW Natural White Elite2 (1141/1156) BA15s Base
I had a couple of pivoting head reading lamps over the bed that used
921-9-3030-NW Natural White Elite2 (912/921) Wedge Base
In all cases, I use the "Elite Series" lamps because they have aluminum housings for better heat dissipation.
Charles