... saving energy Working voltage: AC90-265VPower frequency: 50-60HzThe input power: 12wColour temperature: warm white/whiteMaterial: aluminum materialsize: 110.5* ... save the energy 70%, long service life (50,000 hours),light source, hidden architectural decoration interior, illuminant does not appear, no ... , office buildings, business hall, lobby, meeting rooms and other places. cree led AR111 spot lamp