Electronic Ballast for HID Lamps (World Wide) Model: GD-311-MH/GD-312-MH/GD-313-MH Rated Power: 20W/35W/70W Case Dimension:121L*67W*31H(mm) Input Voltage: 220V-240V Carton Size: 38L*27W*19.5H(cm) Frequency : 50/60Hz PCS/CTN: 50 pcs Output Voltage:3.8-5KV APPROVAL:VDE EMC CE ROHS Ta: -25¡æ to 50¡æ Tc: Max.85¡æ Technical Parameters: Protection class II Thermal Protection Casing: Aluminium and Heat-resistant Polyamide Ambient temperature(ta):-15 to 40¡æ High Power Factor Casing temperature(tc):Max.85¡æ Power Factor(PF)¡Ã0.98 Constant Power Output Total Harmonic(THD)£¼15£¥ Over Voltage Protection Low Product Temperature Air Humidity(£¥):Min.5£¥ Max.85£¥ SAFETY: EN 61347-1 EN 61000-3-2 EN 55015 EN 61347-2-3 EN 61000-3-3 EN 61547 CERTIFICATIONS: VDE EMC CE ROHS