Product details:

Maximum profitability due to the high luminaire efficacy 450 lumens per head 10-Wattage, 50-wattage equivalent per head This Track Light Kit makes installing track lighting easier than ever. Three nickel track heads are included. Track heads are adjustable to allow you to change the direction of the light. Each head uses 10W and is equivalent to 50W with an average of 50,000 hours of usage. This track head is compatible with Halo track systems only. Adapters for other track systems sold separately.