Features: 1.Metal Halide without exhaust pipe can replace G12 traditional metal halide and can be used in place of commercial lighting, home lighitng and other occasions 2.The advancement of no exhaust pipe structure ensures the consistence of color temperature 3.Higher luminous efficacy and longer life than traditional metal halide 4.Close to CRI of CDM, superior cost-effective. Usage: 1.It must use with compatible magnetic ballast or ignitor and electronic ballast 2.Recommend to use with electronic ballast to extend lamp life, increase system efficency and prevent stobe flash 3.It must use other grade ballast if the voltage is ofen more than 3% of rated voltage 4.It must use a strong current protection device(IEC61167) 5.Suitable for closed(hard glas front cover)fixtures.