WAC Lighting HR-8403H Recessed Low Voltage New Construction with  Magnetic Transformer Integral Magnetic Transformer - Dimmable with magnetic low voltage dimmers 3' clearance on all sides when insulation is present - J-Box and transformer accessible through ceiling UL and CUL Listed, suitable for damp locations. Compatible trim: HR-D417, HR-D418, HR-8414, HR-8425 Lamp: 50W max MR16. Compatible Trims: HR-D411, HR-D412, HR-D413, HR-D414, HR-D423 Compatible Trims: HR-D416, HR-8411, HR-8412, HR-D419, HR-D420, HR-D423, HR-D433