Main Technical Parameter luminous intensity: up 1600cd luminous time frequence: 20 flash/min usefu lifespan:2×108 rated power: 50w working enviorment temperature: -45°C +50°C grade of sealing: IP65 voltage: 220V±3% weight(kg): 4 4.5 Applicable Scope Apply to obstacles below 105 meters, such as chimney,airports, iron towers,high buildings etc.