Sell 250W electronic ballast for HID lamp

Low-Frequency Dimmable HID E-Ballast Features and Benefit:
Low Frequency: No flicker and hum.
Higher lamp efficacy, cooler lamp and ballast operation
Longer lamp life
Consistent color rendering.
Ambient Temperature Can be used in most outdoor or indoor locations.
Superior Lumen Maintenance: *0% of initial lumens at mean life
Protection: Short and open circuit, overload protection.
Light Weight, Design Easy to install.
Less expensive mounting details reduces housing, structure and pole costs.
Application Area:  Street lighting, hydroponics lighting, and large warehouse, dock etc.