Standard BL 1400Lm Electronic 120 277V Fluorescent Emergency Ballast For (1 2) 2 8 Foot T12 HO Or VHO T8 HO 20W 40W Circline 13W 55W Compact Fluorescent Time Delay Test Switch (BAL1400TD) backorder1428 Standard BL Fluorescent 120 277V Electronic Emergency and open plan kitchens Standard BL Fluorescent 120 277V Electronic Emergency Ballast For (1) 2 Foot 4 Foot T12 T8 20 40W Circline 13 26W 4 Pin Compact Fluorescent Bulb With Time Delay (BAL500TD) GE GE240PS MV N Rapid Start Electronic Fluorescent Ballast For F40T12 F30T12 F34T12 F20T12 Run At 120V 277 (74472) The integrated time delay test switch allows for easy maintenance and ensures your system is always ready for use this 120 277V electronic ballast ensures reliable performance for (1 2) 2 8 foot T12 HO or VHO T8 HO 20W 40W Circline 13W 55W Compact Fluorescent bulbs