Our facility has a 480 volt HID lighting system. Since fluorescent electronic ballasts are not available in 480 volts, don’t we have to keep our HID system?

No. We can very often provide 277 volts to the fixtures by reconfiguring (splitting) the circuits. Your electrician can provide details.

In addition, 480-volt electronic T5HO ballasts are in development and will soon be commercially available. More.

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