This Class IIIA red diode laser point is a little different -- press the button to tun on, press again to turn off. Perfect for classroom optics
red lasers, explained by RP; laser diodes
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Laser Pointer VY Optoelectronics Co.,Ltd.
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This red (650nm wavelength) laser diode module is easily powered by a 5V DC USB power supply or battery and can be used as a pointer, for illumination, and light therapy. Wires for the DC power are soldered to the 6mm brass laser diode housing. The module includes an internal 91-Ohm current limiting resistor, so no additional series resistor or current limiter is required. Simply connect 5V DC power to use! The Red lead is Positive (+), and the Blue or Black lead is negative (-).
Envistia 5pcs 650nm 6mm 5V 5mW Red Laser Diode Module
Industrial Red Dot Laser Module
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Red Diode Laser 650nm 1mW Φ3.6×9mm Ultra-small Size Laser Module Dot
This Class IIIA red diode laser point is a little different -- press the button to tun on, press again to turn off. Perfect for classroom optics
Red Diode Laser Pointer
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Powerful Red Laser Pointer 300mW Bright Strong Beam 650nm – Zeus Lasers
