GZ-3 Photo-electricity Controlled Lamp , tower LED obstruction light GZ-3 photoelectric control light is the new model of long service life products. The light adopts Fresnel lens and UHBLED design, with high brightness and service life more than 20 years. There are two installation mode, pole installation and batholith installation, beautiful figures and easy to installation. Technical Parameter Operation Voltage Range: DC 48V, AC 110V, AC 220V Intensity: 2000cd Power: 5W-100W Light Source: pillory luminary Flash Frequency: 20-60/minute (Adjustable) Ambient temperature: -40°C - 70°C Weight: 2kg