Recessed Light Housing, Non-Insulation Contact, 4-In.Halo, 4", non insulation contact recessed housing, remodel recessed housing, air tite, insulation to be 3" away from fixture, integral thermal protector, junction box listed for through circuit wiring, 4 each 1 2" knock outs, 4 each non metallic knock outs, pry out slots & strain relief, 4 remodel clips secure housing & accommodates 1 2" & 5 8" ceiling materials, 5"h x 4 1 4" opening, ul, csa, damp locations, ip rated.