1.use high luminous efficiency led source >100lm/w 2.life-span >50,000hours 3.have CE certification 4.warranty : 3 years FeaturesAluminum reflector and heating bodyAcrylic glass coverPBT light holder with white environment friendly materialSingle high powerful LED 3/5/7W light sourceAC85V~AC265V wide range of constant-current source UsageCorridors, office, schools, households, and some other ...