... will use the 150W to modify for you.20W,35W,70W,150W,250W for Metal Halide lamps with CE, ROHS,ISO9001 ... life 2,lumens low coefficient 3,Electromagnetic radiation is too power to effect the around electrical equipment working.HLB brand electronic ... heating. 4,Abnormal lamp automatically cut off the power 5, with overvoltage protection, to prevent a short time voltage surges and temporary voltage ...