... same quality as QUANTUM - dimmingable - 100-240V compatible - HPS & MH convertible - UL, CUL, CE, ROSH certification - same quality as QUANTUM ... - convertable for HPS and MH lamps- High lumen efficiency- Low power consumption- Protection functions: ... 90%- operating temperature: - 30°C - + 55°C US style electronic ballast/ digital ballast/ 600w HPS/MH ballast