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520nm 1 Green Light Fat Beam Laser Diode Module Coarse Beam Laser Warning Light Parameters:Laser wavelength:520nm Laser power:1 Operating current:< 2 Operating voltage:DC 12V Operating temperature:-0~65°C Storage temperature:-40~ +85°C Irradiation distance: three KM Spot size:35mm Working hours:10000H Size:102*40*40mm Package:1pc 520nm 1 green fats beam Laser Diode Module