1,5years of life 50000 hours, 2,no flash,instant start 3,high efficiency 4,no flicker,no different sound 5.waterproof Input voltage:AC24V, 2.5W, 36PCS LED, IP65, Size:D165*H135mm.Material:Stainless steel 304, 1meter VDE Cable .45° 2.5wundergroud light