The GKD BY(J)LED Obstruction Light designed with 48V DC as power supply, adopt UHBLED or light bulb made by HP as light source. The lamp shade is made of polycarbonateits and the shell is sturctured by spray painted steel base and stainless steel screw stem. The light is controlled by photosensitive resistor and it is automatically flashes (or keeps lighting) at night and automatically turned off in the day time. Features 1. The light is watertight structured, beautiful figures, reliable , light weighted and is easy for installation. 2. Light base adopts PC of German-make and cast aluminium base, with an overall high strength, impact-resistance and good insulation properties. which increases the illumination by over 100%. 3. All parts are enclosed within the lamp body. Technical Parameter Operation Voltage Range: AC 220V Flash Frequency: 20-60/minute (Adjustable) Intensity: 1600cd Light Control Sensitivity: 0 -300LUX (Adjustable) Power5W-100W Ambient temperature: -40°C - 70°C Weight: 2kg