Emergency Ballast for T8 Bulbs Fluorescent Bulbs with 800 Lumens Product Type_Light Pole Bullhorns Keystone electronic ballasts are made

Keystone electronic ballasts are made by a leader in the lighting industry that 's been operating in Pennsylvania since 1945

different optical lenses from 15° to 60°

F21T5/HE and F14T5/HE

offering lighting in every imaginable category from the auspicious 15 light 3-tier chandelier

Emergency Ballast for T8 Bulbs Fluorescent Bulbs with 800 Lumens Product Type_Light Pole Bullhorns Keystone electronic ballasts are madeThe VEM800DV L emergency ballast from Espen Technology is designed to operate with fluorescent T8 lamps as well as Espen's Retroflex and Retroflex HE lines of plug and play LED T8 tubes. It works in conjunction with the AC ballast to allow the same fixture to be used for both normal and emergency operation. When AC power fails, the ballast switches to emergency mode and keeps one lamp illuminated at a reduced lumen output for 90 minutes maximum. It is