Description
Keystone Electronic sign ballast, 120V-277V, 4 to 6 lamps, T12HO 20′ min to 48′ max and T8HO 20′ min to 36′ max total lamp ballast wires exactly the same as traditional magnetic ballasts for quick and seamless installation and compatibility!
Keystone SmartWire Electronic Sign Ballast – Series Wiring
Wire exactly the same as the discontinued magnetic sign ballasts
Up to 15% savings over magnetic sign ballasts
Input Voltage: 120V-277V 50/60Hz
Minimum Starting Temperature: -20C, -29F
Thermal Protection
FCC Compatible Interference eliminated through low RFI and EMI
Dimensions: L: 16.50″, W: 3.15″, H: 1.18″
T12HO 20′ min to 48′ max / T8HO 20′ min to 36′ max total combined lamp length






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