Optics Ø20 mm lens Beam angle 8° - 22° / 28° - 37° / 33°/ 54° Material Aluminium and plastic Colour Grey Surface treatment Anodised Tilt 38° Rotate 360° Size Ø26 x Custom length mm Mounting Surface mounted with nut Mounting hole Ø33 mm Min. tail size Ø0.75 mm Max. tail size Ø4.5 mm Protection rating IP 20