10pcs Laser Diode Module red copper tube shaped head 5mW 650nm dot DC 5V 6mm
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
10pcs Laser Diode Module red copper tube shaped head 5mW 650nm dot DC 5V 6mm
I doubted for a moment the seriousness of the announcement so it seemed inexpensive ... and there was no reason I received my products quickly enough despite the distance and it works great.
