M140 A-Type 1.8W Laser Diode 445nm 5.8mm TO-18;

Listing is for a single 5.6mm 1.8W A-Type M140 445nm diode. These are M140 diodes extracted from a brand new M140 projector. The M140 projector yields two types of diodes the A-Type and the M-Type. The A-Type does 1.8W and the M-Type do 2W+. Some sellers don't bother sorting and just leave it as luck of the draw for the customer. If the listing does not state if it is an A-type or M-type but just says M140 then it is most likely a random pick and you could end up with either diode. This also helps sellers reduce cost selling them all as the same diode. The A-Type M140's average about 1.8W @ 1.8A using a G-1/2 lens. This diode is a never used diode that is extracted from a brand new out of the box DLP projector. Only running time would be whatever quality control testing was done @ the manufacturer and myself running them briefly to make sure they all are in good working order before being sold. On these diodes the case pin is cut short when it was installed in the DLP projector but is still more than long enough to still use and I do quite regularly, there is a pink spacer on the back that you will remove to reveal the case pin, there may be some thermal grease still on the underside of the diode and there will be some solder residue left on the pins. Diodes are current hungry and as they heat up their internal resistance is lowered causing them to want to draw more current. Don't attempt to connect the diode directly to a fixed voltage source like a battery. You must use a proper LD driver like an X-drive limited to no more than 1.8A or you diode will suffer thermal runaway and die. If you don't already have one see this one. http://www.amazon.com/gp/product/B00V5CF0MU