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Listing is for a single 1W 520nm laser module using the 9mm NDG700 green laser diode. Unit is mounted in one of my 12mmX30mm high quality copper modules for the best possible thermal efficiency. It is prewired with a 1.8A Super X-Drvie bucking laser driver and comes with a DTR-G-8 glass lens. The unit is ready to be dropped into your final project. No setting current or soldering diode to driver. Just place in heatsink and connect leads to a 6V-9V 2A capable power source. Example if battery powered two Li-Ion's in series. If not battery powered something like a 6V 2A wall adapter or bench power supply. Here is what you get. The X-Drive is encased in the back of the model connected to the diode. Modules are wired with extremely flexible 26AWG wire that is burn proof and makes for very easy soldering. Wire assignment is: Red + Black - Wavelength 520nm +/- 5nmInput Voltage 6V-9VDriver Output Current 1800mADriver Current Draw 1.5A +/- 0.5APower Output 900mW-1.1WDriver Type Constant CurrentLens M9x0.5mm Threaded DTR-G-8 Glass LensDuty Cycle Continious with proper heatsinking If this is your first laser build here is a great place to start. The, "I want to build a laser", Thread Check out this build1.4W 520nm - The Hulk - MS-SSW-II Custom Direct Green Here is my testing on this diode Nichia NDG 700mW 520nm Laser Diode They look just like the 1W version. With the same off center pins. This is the diode being sold by sellers here on ebay as NDG7475/NDG7475T/NDG7575. The diode can hit 1W but it is not the NDG7475. Here it is. The little brother to the 1W 520nm Diode. Pretty much the same as the 1W version other than slightly less powerful and a lower pricetag. Anyway here is the testing done with a DTR-G-2. There you have it. Whole lot of of Green goodness. Oh and for some dark shots. *Disclamer* By purchasing these diodes you are agreeing to the following. - You are over 18 years of age . - You understand that these components that are mentioned above are dangerous when not properly assembled into a finished product. - You will use these as components and properly incorporate them into a finished product. - You will use these diodes/modules in a safe and responsible manner and for a legal purpose. - You are legally responsible for the use of these components, improper use of these components or their end products. - You are legally responsible for any injury to anybody resulting from the use of or assembly of these components or their finished products. - You Accept this diode/module as a COMPONENT for integration in a system of YOUR OWN design and will be legally responsible from any and all LIABILITIES These Diodes and Modules are sold solely as a component for incorporation into the customer's end products. Therefore, this diode/module is exempt from compliance with the appropriate requirements of FDA 21CFR, section 1040.10 and 1040.11 for complete products.