The standard package is ample for most applications and is three (3) lights per side. The addition of more lights is possible and they are in pairs on opposing sides. They are not sold individually to add to the only side you fish out of, if you do so. Originally the staff internally was questionable as to whether the amount of light was enough, htough once used it is more than ample. Not too bright, though enough. It is very, did we say VERY, nice to not have those florescent bulbs to worry about breaking and a cord to fumble with also. BCB