CONCRETE COMFORT: defined by a mix of styles and aesthetics, this 4-Light Track Light expertly exemplifies concrete comfort with its geometric design, matte black finish, and adjustable height ADJUSTABLE HEIGHT: perfect for any space, you can adjust this track light to suit your needs - Adjustable height of maximum 29.9" (75.9 cm) to minimum 20.9" (53 cm) BULB REQUIREMENTS: this track bar requires 4x GU10 Twist and Click Base 50W Max Bulbs (sold separately) - Compatible with LED and Incandescent Bulbs PIVOTING TRACK HEADS: the pivoting track heads let you direct the light where you need it most providing the perfect lighting ambiance for every moment and every room DIMMABLE: although the dimmer switch is not included, this track light bar is fully dimmable with a compatible dimmer switch to create the perfect atmosphere for any situation