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Specifications:Model M-20B660-200-L Wavelength 660nm Output strength 200mW Supply voltage 5V Working latest 280mA Spot mode Dot/Line Optical section glass focus + K9 glass cylindrical lens Product supplies aviation aluminum Working temperature ±50℃ Working lifestyles 8000 hours Dimensions 20mm*110mm (not adjustable focus) Best working distance 0-15 meters Output band visible lightPackage:1pc 650nm 200mW 20mm*110mm (not adjustable focus) Laser Module 1pc 5v adapter(US/UK/AU/EU plug adaptery)