its just one of those fourescents with 4 bulbs inside..about a foot long...one you would get at home depot...lol...or thats where i got it...lol...u can put it on with just 2 of the bulbs or all 4...i have 2 of those...then 1 thats a single bulb about 2 foot long...that i got from sears...craftsman to be exact...but i think i am going to get rid of that one...doesnt seem to be as bright as the other one...but i think it is more watts...and thats the one that is mainly over the one tall one..the one that looks like it got burned on those 2 leaves...all 3 lights were about 30$ a piece