12 volt replacement LED Bulbs are the way to Go Green!! They use 90% less power than comparable bulbs, so you can run more than 10 of these with the same electrical power it would take to operate one comparable incandescent bulb. Using less power means less heat is generated, which practically eliminates the 'burning' of lenses of covered light fixtures.
Ultra-bright LED bulbs have a 60,000 hour life expectancy without significant degradation of brilliance. That's 50 times longer than an incandescent bulb, who's brightness degrades rapidly, so it makes sense to replace these bulbs with LED technology.
So that you may know the relative 'brightness' as measured in Lumen Output, please use the charts below to compare the Lumen Output and the power usage (Watts - Amps) of the the LED bulbs with the incandescent bulbs of a comparable base style.