I guessed that the label was meaningless. Although this laser makes a very bright green line and its green spot on the wall can illuminate the entire room very clearly.
Thank you very much guys!
Ales
Hi folks,
I bought a Chinese laser at the Vietnamese market(for about 7 USD). I wanted him for a double slit experiment. I felt too strong when I turned it on at home. I tried to aim it closely at the thermal paper, but nothing happened. The problem is that I watched it for about ten seconds...