P***n 25 Jul 2020
It came quickly in a common combined package. I took it. I will test much later and if I collect for 3 months, I will add a review. I expected that they would be larger. They look strong. Radiator cooling later I will find.
B***n 29 May 2020
good very good seller he understand to extend buyer protection until the product arrived thanks
J***b 28 Jul 2020
Came in 3 weeks, quality is great as before. I like this seller.
Nothing burns on a dark coating can barely be seen.
I have nothing that does not burn! What am I doing wrong?
Does polarity mix up? Check current
Can be used to burn matches, and drill wood?
The beam is invisible but the burning light is as possible
Can I have a phototheist for printed circuit boards?
See radiation spectrum and exposure spectrum of copper plate
How many amrers can you serve him?
What color does the beam give a diode?
Infrared. Since the power is large enough-eyes never look! Especially since you will not see. You can watch through the smartphone camera.
Can you see the laser?
No, infrared range
Can this burn
Yes, laser diodes easily burn, even from static electricity. need to be neatly connected!