Received quickly and works very well

Received quickly and works very well

10pcs Laser Diode Module red copper tube shaped head 5mW 650nm dot DC 5V 6mm

Customer Review

I received these laser diodes in barely more than a week.
They work very well. The light intensity is high (tested on a 6V supply in series with a resistor 1kOhm.) Also the beam is concentrated enough (no need to add to the output lens as other laser diodes)

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