Power factor: > 99%; THD: <10% Prolong lamp lifespan at least 10%, 3 year factory warranty Runs on 120/240 volt power, 50/60 hertz Suitable for HPS and MH bulb of America and Europe Standard Usage temperature:-30 to 50 degree C Simple style with high quality, the special and practical structure of housing smaller and lighter than normal ballasts A big side of housing to show your brand by label or print CE, FCC are available Comes in a fully-colored non-branded package Customized packaging available Caution: Only professional allowed to do below operation Before assembly&maintenance, please make sure the power is cut off Before fixing cord, check if voltage is ok and check cable before other cables The product can just work with HPS&MH lamps only The product for indoor use only