TORCHSTAR 4-inch UL-Listed Remodel Can, Air Tight IC Housing, E26 Socket Included, Recessed Retrofit Kit for 120V Line Voltage, Max 35W, Pack of 6 UL listed for safe assurance in operation,thermal switch included, cut off power automatically when overheat Air tight design + durable diecast aluminum IC housing, prevent heated airflow diffusion, and can be directly connected with thermal insulation and combustible materials Compatible with max 35W E26 base bulbs and 4-inch LED downlights, adjustable E26 mounting plate included, provide best fit location for bulb 4 inch remodel recessed retrofit kit, suit for 4 1/2 inch ceilling hole 4-wire push-In connector included in junction box, push-n-click, easy and firm installation