hello....
Just replaced 921 bulbs w led from Amazon....
1 set (2) was 15led unit, 1 set was 5led unit......both are much dimmer than reg 921, the 5led unit was more 'blueish' color....
We're trying to cut down the watts for dry camping also....
Tried all on last night, and was acceptable, but Not Bright like before....
Also used new Led 'bulbs' in the standard dual bulb fixtures, with only 1;Led in 1st side on and reg bulb in second/both bulbs on side....
This way, 1st switch Led only (dry camp), and both on when plugged into 120v shore power and want more light....
Also going to leave the stock double flourescents alone for now, use for brighter prep work and they appear to draw @ 3 amps...never on for more than 1 hr at most in regular usage.
The Led seems to be a little trial/error affair....
Oh, I bought 2 pk red Led at auto supply, bayonet base, and they are BRIGHT! Only uni-directional, but work Great in lav hallway ceiling fixture as 'driving night light'....
Also, going to put few of these in garages for low power night lighting....the red is easy on the eyes in the dark.....fewer bugs too
Enjoy, this is all a work in progress...LoL