I bought several different LED 1141 replacement lights to test out for our recently acquired travel trailer.  After reading about how much less energy the LED's use than the incandescent 1141's I was convinced the switch would be worth it, despite the relatively high cost.  We do a lot of dry camping (no shore power) and I don't want to have to think too much about always turning lights on and off to conserve battery power.  Plus I think (hope!) that the LED bulbs will last a lot longer than the incandescents, two of which burned out in the first two weeks of owning the trailer.Anyways, first I tried these:  http://www.amazon.com/gp/product/B002BN5ZT0/ref=oh_details_o01_s00_i00Despite saying "warm white" these are actually a very bright white, probably 1.5x as bright as the incandescent 1141's they replaced and a very clean white light.  If super-bright and clean light is what you want these will do it.  For me, though, they robbed some of the "cozy" feeling I like when having dinner or playing cards in the trailer at night, so I installed them in the main overhead light, which I usually only turn on when I'm looking for something.Next I tried these:  http://www.amazon.com/gp/product/B003TKI4VU/ref=oh_details_o02_s00_i00These were a warmer white but they were probably only 50% of the brightness of the incandescents they replaced.  They didn't give off enough light that we could comfortably play cards by these alone at the dinette, so I knew these weren't going to be good for my needs.  Because they're such low-light I'll probably just use them as replacements for the exterior lights on the trailer or something.These new lights (the ones this review is for) are pretty much perfect.  They're slightly brighter than the 1141's and not quite as "warm" but they're definitely close enough on both accounts that you'd only really notice the difference if you saw them side-by-side in a fixture or you're especially sensitive to lights in some way.  So if you're looking for a "good as it gets" replacement for your old 1141's in an RV benefit from my testing and get these, because they're more or less dead on.