Chatsworth, California, on the NW side of the LA metro area.
M4 Products. I have bought from them, and while pricey, they quality is way above the other crappy stuff on the market.
Look at and read their homepage. Showroom by Appointment.
http://www.m4products.com/
I had Progressive Industries lighting in my Winnebago, with bayonet base bulbs, and removed the sockets and dished reflector plates, and made new flat plates and installed the flat plate LEDs that M4 sells and then hardwired them in (the fixtures do not have switches. Sold the motorhome.)
Bought a travel trailer (interim unit till the Unicorns bring me what I really want) and just the other day converted it to the flat plate LEDs, same thing, removed the sockets and hardwired the flat plate LEDs to the switches. These are the very common fixtures that have the round rocker switch in the middle, use the 921 bulbs with the wedge base and have a tiny little metal reflector. I removed the reflector and the sockets (they just snap out) and rewired and reinstalled a fixture and then removed the next one and off to the bench.
Flat plate LEDs are great, they project all of the light down, where is should go, and the lenses scatter it enough to provide side light.
I used the larger flat plates this second go round and may have outdone myself this time. Will have to order some of the smaller ones for a couple of the under cabinet and bathroom sink alcove fixtures where you don't need as much light.
I prefer natural daylight color, about 4500K. Cannot stand the bluish light or the yellowish warm light. These flat plates DO come with both wedge and bayonet base adapters to plug in but I just do away with the sockets and cut the adapter bases off the wires on the lights.
Really freaking bright, love it.
http://www.m4products.com/alplate-48-5630-nw-natural-white-double-aluminum-plate/this one is about the same brilliance as the original bulbs,
http://www.m4products.com/alplate-24-5630-nw-natural-white-double-aluminum-plate/They also have many other bulbs and also in cool and warm color.
Charles
