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ParametersPlease observe that this is IR Lasers which may not be viewed through bare eyes can get the light through manner of night imaginative and prescient digicam or IR detection card. Wavelength:980nm Output Power:30mw Working Voltage:DC3 Working Current:I <100mA Working Temperature:+15 ℃~+35 ℃ Laser Shape:Line(120 levels as default) Focusable:yes Material:Aluminium Dimension:12x30mm or 12x40mmFeatures1 input, the purple line is positive, black line is negative. 2 980nm laser module with motive force incorporated is an advertisement electronic component and used for Industrial testament, Lab sporting on some laser DIY activities, please read about the technical news first and protect your eyes earlier than laser ray. Be sure the operator has journey in optics DIY or testing. 3 wear 980nm laser protection goggles once you paintings on it Focusable 980nm 30mw Infrared IR Laser Diode Module