Larson Electronics Far UVC Replacement Ballast - (1) 180W or (2) 90W Lamps - 120/240V
Amazon.com: 13 to 64 Watts, 1 or 2 Lamps, Electronic Ballast : Industrial & Scientific
Paramount Ultra UV Dual Voltage Ballast (2 Lamp) 005-422-9030-00
GE Lighting 72273 GE232-MV-L 120/277-Volt Multi-Volt ProLine Electronic Fluorescent T8 Instant Start Ballast 2 or 1 F32T8 Lamps - FrankoLighting
ADVANCE ICN2S24N35M BALLAST LAMP TYPE: T5 NUMBER OF LAMPS: 2 _BALLAST TYPE: ELECTRONIC FLUORESCENT VOLTAGE RATING: 120-277V WATTAGE: 24 WTT | United Electric