300w solarpro flood are ine of most powerful lamps we have with a coverage of 200sf special for ranches, big buildings and construction sites. this flood is powered by solar 100% with a 5v/35w solar panel . 3.2v/24ah lithium batteries. and the most seller LED chip on market asia Nichia japan smd . flood warranty is 2yrs. estimated life time is 5/6yrs.