Specification:Voltage: AC85--265V 50/60Hz Wattage: 5W/7W/10W/15W Light Color: Warm White +Cold White + RGB (16 million+ colors) Luminous flux: ≥100lm/W, RA≥80 Internet connection:WIFI+BLE(Dual mode) / Zigbee three Product size: 98mm/115mm/145mm/190mm Required hole size: 70-80mm/95-105mm/120-130mm/155-165mm Color temperature range: 2700-6500KThe peak of every wattage downlight as follows:5W: 6 top (70-80mm Hole) 7W :6 top (95-105mm Hole) 10W :7 height (120-130mm Hole) 15W: 8cm peak (155-165mm Hole)Please Note:Zigbee Downlight, it is best to buy a Zigbee gateway or Zigbee multi-mode gateway to realize all purposes Required!!!