Eco Lighting NY HV4006WH 4-Inch Line Voltage Trim Recessed Light fit Halo/Juno , Adjustable Gimbal Ring, All White Inside Diameter: 3.75" Diameter: 4.75" Height: 2" All White Bulbs not included. Lamp: A19, Par 20, R20; Max wattage: 50W (for both IC and Non-IC Housing). Housing or can is required--order sperately from trim.