The Fulham FH11-UNV-750L-CEC Firehorse Emergency Ballast is for use with or without AC ballast designed to add emergency lighting when main AC power is interrupted for minimum of 90 minutes at reduced illumination. The emergency ballast is not intended for general purpose lighting applications. The Fulham FH11-UNV-750L-CEC complies with minimum light output for emergency lighting equipment as per UL 924, supplement “SH”. Consult with factory when using EM Ballast with low mercury lamps (TCP).The Fulham FH11-UNV-750L-CEC Fire Horse is for the following: 1X, F54T5HO, F72T8HO, FT50W, FT40W, F84T12HO, F39T5HO, F28T5, F60T12SL, F60T12HO, CFTR42W, 40WCRT9, 2D38W, CFTR32W, F70T8, FT55W, F40T8, F60T8HO, F40T12, F96T12SL, FT36/39W, F58T8, CFQ26W, 22WCRT5, 55WCRT5, F48T12HO, F32T8(30W), F32T8, F32T8(28W), F21T5, F24T5HO, 32WCRT9, 2D28W, F14T5, FT24/27W, F32T8(25W), F25T8 2X, FT24/27W, F40T12, F25T8, CFTR18W, 2D28W, FT18W, F30T12, F17T8, F20T12, Lamps Suitable for use in 15°C TO 55°C (59°F TO 132°F) ambient temperatures: 1X, F96T12HO, F96T12HO, F54T5HO, F35T5; 2X -CFQ13W, CFTR26W, CFTR13W, 2D38W