Led panel 1.7mts 11.100lm 64w 4.000k start velum. 220-240ac, 50 / 60hz, extensive optics with 120º opening. energy class a ++ jrc 90 made of aluminum, structure color black ral 9005g. caution: this screen can only be installed by an authorized professional installer. in case of doubt, contact yamid.narvaez@velum.biz. important: this screen is intended for a chain ??installation of which it is the starting point.