... wider environment of temperature ,it could keep high output .we could do 42watt to 471 watt.2.long lifetime ,it could use ... times of normal lamp,save a lot of cost.4.we have patent of upright use for amalgam lamps.5.high ... : 110,115,320,500,460,600,1160.....Life(h): ≥13000Note: We can make suitable types of Amalgam UV Germicidal Lamp according to customers ...