Reverse polarity, excessive current and high heat will damage or ruin these. A constant current laser diode driver is required to drive the diode. Never connect directly to a battery. Recommended driving current is between 1A and 1.6A.
The current should not exceed 1.8 amps!!! The diodes must be inserted in to a laser diode module w/ heat-sink before energizing to dissipate heat. A glass lens should be used as well. Always wear protective safety glasses or goggles that block this spectrum and intensity of light... You've only got one set of eyes!!Once your order is placed it will go out right away because I don't want you to have to wait any longer than you have to. International orders take longer of course but they have been getting delivered fairly quickly. Please don't hesitate to contact me with ANY questions regarding my listing(s). I can offer a lot of technical assistance and/or point you in the right direction to find the answers you are looking for. Please check out my new E B A Y STORE! The item "M140 M-Type Laser Diode JAPAN 445nm 5.6mm 2W Engraving / Burning" is in sale since Wednesday, March 7, 2018. This item is in the category "Business & Industrial\Healthcare, Lab & Life Science\Lab Equipment\Lab Lasers & Photonics". The seller is "barnett_unlimited" and is located in Southwick, Massachusetts. This item can be shipped worldwide.