hosing material: aluminum, surface oxidized size:L215XW80mm Hole Diameter: φ55X3mm led quantity:4pcs power:1W~12W color: red/green/blue/yellow/white/warmwhite adjustable angle:0-90 degree lens PMMA: focused angle: 20-30 or 45-60 degree driver system: external constant current driver wattage: 4x1w led power: 1W/350mA or 3W/700mA input voltage:AC/ DC12V ORAC100V~240V Beam Angle:15°/30°/45° lifespan:30000 hours Cooling way: via aluminum body ambient temperature: -20°c~40°c CHARACTERS: High brightness and low attenuating. External constant current driver. Adjustable angle,easily installing.