GKD - A Aviation obstruction light/ Obstruction warning light - electrical power supply The GKD - A Aviation Obstruction Light has been used for GSM communication tower, with 220V AC as power supply, and HP light bulb ( or LED) as light source. The housing is made of PC and cast aluminium. It is controlled by photosensitive resistor and it is automatically flashes (or keeps lighting) at night and automatically turned off in the day time. Due to the simple structure, the light is widely used in the the hgih buildings, high chimney, flagpoles. Features 1. Light housing adopts PC of German-make and cast aluminium base, with an overall high strength, impact-resistance and good insulation properties. The lamp body adopts Fresnel lens design, which increases the illumination by over 100%. 2. All parts are enclosed within the lamp body. 3. The lamp body is simply structured, light weighted and is easy for installation. Technical Parameter Operation Voltage Range DC 48V, AC 110V, AC 220V LED NO.: 24, 48, 105, 190 (OPTIONAL) Flash Frequency: 20-60/minute (Adjustable) Power: 5W-100W Ambient temperature: -40°C- 70°C Weight: 2kg