Z-Track head is an economical and affordable LED cylinder with five color temperatures in each luminaire. Track heads feature an adjustable beam spread by rotating the front bezel, without the use of tools or requiring any additional accessories. Perfect for applications that require a range of beam spreads or where the desired beam spread is unknown at the time of specification. Input Voltage: 120V Lumens / Wattage: 1550lm / 20W Color Temperature: Selectable CCT (27K/30K/35K/40K/50K) Color Rendering Index: 90+ CRI Beam Spread: Field Adjustable (20° Narrow Spot to 50° Narrow Flood) Dimming: Triac or ELV Finish: White Track Adapter: L-Style