... White, Base:E27/B22 Input:AC110/230V Beam angle:15/25/30/45/60/100 Color:White,Warm White, ... R/Y/B/G Product Data Product NumberSPZ-PAR38-018-CREE-PWGeneral ... 300,000 ÷1000=300Kwh per year×kwh rate of $0.15=$45 per year×100 lamps per space=$4500annual energy cost ... 54,000 ÷1000=54kwh per year÷kwh rate of $0.15=$8.1per year×100 lamps per space=$810annual energy cost ...