... longer2,Brand LED cold light source,no radiation,no heavy metal pollution,performance, olor pure, rich, high brightness,low flicker,saving ... / 10,life is extended more than 100 times.)Ordinary 70W metal halide lamp we put it down to 10W from 70W 8,shell ... supply(commonly known as transformer): Transformer determines the life of lamp,lamp beads with more than 50000hrs no problem,but if the ...