... aluminiumlamp cover: tempering glass technology, good vitreousness,anti high/low temperature burst, awarded china technology patent.lamp ... encapsulation technology, anti-luminous decay, anti UV, high/low temperature resistancestandard color temperature, no strobe.Color temperatureWhite ... red, yellow, blue, green.Optional beam and flood distance(length width)pencil beam glass 36w 600m*20m 50w 700m ...