UNIVERSAL Signa Electronic Sign Ballast, 120V-277V, One to Four: T12HO 4 ft to 32 ft  r T8HO 4 ft to 24 ft total length, Parallel Wiring, Instant Start

Universal Signa Electronic Sign Ballast - Parallel Wiring

Signa sign ballasts are ideal for new sign installations with minimum wire connections, universal input voltage, parallel lamp operation, and maximum energy savings. Class P thermal protection.