The slim track panel could adjust the lights direction from  0-355 degree vertically accroding to the different project request, Wattages adjustable from 50W-57W-64W-75W. So it is smart and easy to make fixtures in stock for the wholesales, distributors, resellers and project contractors, which adjust the suitable characteristics in different end users or cases. This lamp with outstanding quality, 160LM/W high energy efficiency and 70000H super long service life for continuously high quality light to save your electricity bills. mostly of all, could be multiple installation, such as track system, recessed, surface mounted and suspension.