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520nm 1 Green Fat Beam Laser Diode Module Coarse 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 Irradlation distance:3KM Spot size:35mm Working hours:10000H Size:102*40*40mm Package:1pc 520nm 1 green fat beam laser module