ok then... i'm broke and need to build a light, that one was R180, thought it was crappy, but cannot find any LED bulbs on the internet that can give me 8 hours burn time with 180 lumens to run of a sealed lead acid 12V 7A battery that i plan to ride with! Transbaviaans here i come! The battery is 2.5kg but i just shaved my hair and lost a lot of weight doing that.