My biggest grip with LED conversions in general has been finding modules that are at least as bright as what is being replaced when you compare the lumens.
That may be the case for some of the small eBay vendors, but it definitely isn't a problem if you deal with a high quality retailer such as superbrightleds.com The ~19.7" strips I produce 380 lumens/foot which works out to 623 lumens for each of the two strips I installed which is quite a bit more than the original fluorescents produced. The light strips came with "pigtails" attached so no soldering was necessary. Installation time, including removing the ballast and sockets took ~15 minutes.
I don't have any financial interest in superbrightleds.com but I can't see why people would want to spend more money than necessary to do these conversions. Places like cabinbright were helpful when LEDs were new to the market but IMO they have outlived their market "niche".
