UL CUL CE TUV listed HPS/MH electronic ballast, 1000W,600W,400W,250W

• Run for HPS and MH lamps both.
• High power factorPF>0.99
• Low harmonicGeneral harmonic THD≤ 10%
• High light efficiencyand energy saving.
• Low power consumption
• More lumens: 20-30% more lumens than magnetic ballasts
• Constant output of power: Constant output of power and light when voltage varies between  -15%~15% of rating voltage
• Protection functions: Open circuit and short circuit protection functions available.
• Easy installationEasy to hang the lamp, no need any external starter and compensation capacitor.
• Completely silent: no more humming and buzzing.
• Constant output of power when voltage fluctuate with no flickering
• No fans inside,water resistance and maintenance free operation.
• Soft starting
• Dimming function is option.

Choose Welthink, you will benefit: Hi-grade Quality, the Most Competitive Price, Better Service.