LUMAPRO(R), ELECTRONIC, CFL BALLAST, BALLAST START TYPE INSTANT, INPUT VOLTAGE 120 TO 277V AC, NUMBER OF BULBS SUPPORTED 2, 3, MAX. BULB WATTS 40 W, COMPACT FLUORESCENT BALLAST BULB TYPE, DIMMING NO, DIMMING TYPE NO DIMMING, DIMMING METHOD NO DIMMING, DIMMING RANGE NO DIMMING, CA TITLE 20 COMPLIANT NO, 0 DEGREES F MIN. STARTING TEMP., 194 DEGREES F MAX. OPERATING TEMP., THERMAL PROTECTION CLASS P