... Epistar chips 2.front cover:stainless steel 3.constant current driving 4,CE&RoHS certification 3W Square LED Underground Light & LED ... current drivingOperating Temperature -20°C to 60°CUsagegardens,streets,square,villa,parks,lawn Beam angle8°/10°/15°/30°/45°/60 ... :They are widely used for decorative lighting in gardens, streets, square, villa, parks, lawns, supermarket, parking lots, exclusive stores, ...