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2W 445nm M140 Blue Diode ... has been added to your Cart
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  • 2W 445nm M140 Blue Diode in Copper Module W/Leads & Three Element Glass Lens
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2W 445nm M140 Blue Diode in Copper Module W/Leads & Three Element Glass Lens

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Price: $67.00 + $0.50 shipping
Only 16 left in stock.
Ships from and sold by DTR's Laser Shop.
  • 2W 445nm M140 Blue Diode in Copper Module W/Leads & Three Element Glass Lens

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2W 445nm M140 Blue Diode in Copper Module W/Leads & Three Element Glass Lens + QQ-Tech® Goggles Laser Eye Protection Safety Glasses Goggle Glass Shield with Case for Green Blue Laser Pointer
Price for both: $75.99

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Product Description

Listing is for a single 2W M140 445nm blue diode mounted in a 12mm x 30mm copper module with leads and a three element glass lens. The copper module upgrade provides a huge improvement in thermal conductivity over the standard brass module for moving the heat away from the diode to your heatsink which gives a much more stable output from the diode. Save yourself the headache of pressing and soldering. Just add host, heatsink and driver. The three element glass lens will give the lowest divergence of any lens available but has some splash and the 405-G-2 gives about 30% more power and has a cleaner output. I also have a combo with the G-2 instead of the three element. See my other listings.;) Wire assignment is: Red + Black - White Case 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 "constant current" power source like a current limiting driver or variable current power supply with the current limited to no more than 1.8A or you diode will suffer thermal runaway and die.

Product Details

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  • ASIN: B00HFHJBDI
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (7 customer reviews)
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Customer Reviews

4.1 out of 5 stars
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Most Helpful Customer Reviews

3 of 3 people found the following review helpful By C. on July 7, 2014
Verified Purchase
The lens assembly adjusts very smoothly, no binding or other mechanical problems. The photo in the description does not do justice to the solid copper casing of the module. So far, I've only driven it at lower currents (~50 mA, 150 mA), but once I get the proper heat sink applied, I don't think I'll have any problems with thermal dissipation at higher power. The lens performs well, easily focusing the beam to a very sharp point, with little if any distortion. Very fun to work with, no frustration involved. I'd feel comfortable ordering more of these.
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3 of 3 people found the following review helpful By Marc on May 11, 2014
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Worked we'll, I bought it for a science fair project and was burning through balloons and cd cases in no time. It does heat up, so a heatsink is a good idea
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By Abraham on July 29, 2014
Verified Purchase
At first this laser diode worked perfect with two cr123a batteries and obviously the driver. After about 3 days with little use, the laser diode was dim. I purchased new batteries thinking that would fix the issue but it turned out that the diode itself was no good. Disappointed on that diode. Maybe I received a defective one. I tried contacting DTR's laser shop but they were no help.
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By Rich R. on August 8, 2014
Verified Purchase
Product was as described. I have had no issues with quality and received by expected date. Would buy from them again and have. I've bought a total of three lasers. I was not able to get the power output that I wanted from one for my engravings so I bought 2 more so that my engravings would be much more faster. Great product.
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