Measures: 6.50" H x 3" L x 4.50" W Bulb Included: No Number of Bulbs: 1 Type of Bulb: Medium Product Material: Die-cast aluminum track head with polycarbonate transformer case and track adapter. Bi-pin ceramic socket for MR16 lamp. Low Voltage track fixture offered in a wide variety of styles and finishes for a multitude of lighting applications in residential, retail, commercial and hospitality environments. Available in H, J/J2, and L style track configurations. Built-in transformer has a 1W minimum load and can be installed with an LED lamp.