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Your cart is empty.This listing is for one M140 A-Type or A140 laser diode. The diode emits a 445nm wavelength with output power reaching 1.8 watts. Each diode is carefully extracted from a low hours laser diode array. Each diode is fully tested to ensure functionality. You must know what you are doing before hooking these up. 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 1.5A. The current should never exceed 1.8 amps!!! The diodes must be inserted into a laser diode module w/ heat-sink before energizing to dissipate heat. A glass lens should be used as well. Diodes are extracted from diode arrays. Some solder and thermal compound residue may be present. Each diode is bench tested and confirmed to be good. Always wear protective safety glasses or goggles that block this spectrum and intensity of light... You've only got one set of eyes!!!
Nate
2025-09-04 16:13:32
It does work and is as advertised.
Tom Kelley
2025-08-09 18:08:16
Worked wonderfully up until I accidentally overloaded the diode and blew it.
Ryan
2025-01-01 11:50:53
Purchaced from Barnett Unlimited. Was a bit nervous about it, being that the seller had no reviews and was just launched. The diode came a day early, was well packaged, and was the real thing. Mine was brand new, and still had the spacer. Driving it at 1.5W for a longer duty cycle. Thanks!
Annie U.
2024-12-14 10:00:23
Works great . blue white beam with a 18650 directly hooked up. 20ohms resistance across the laser diode prevents it from ever even geting 1 full amp. Making a CD welder type device to give it more power. It works but I'm waiting on more low esr caps to bring the pulses up to 1 amp. Nobodies buck converter will give this 1.5 amps unless it has a lm317or similar
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