Recessed lighting 4" line voltage non-IC housing 120 Volt Most standard trims fit 4-1/4"W X 10-3/4"L X 5-5/8"H Uses R20/PAR20 50W, A19 Bulb not included UL listed^^*CONSULT LED LAMP MANUFACTURER'S SPECIFICATIONS FOR LED LAMP COMPATIBILITY FOR USE IN ENCLOSED OR NON-VENTILATED FIXTURES