Review of the Sanwu Challenger II- 465 nm 2 Watt multimode

[cistercian]

I have some longer focal length lenses like 7mm and 12mm. I still like a focal length around 2.3mm better though. I will do a review of one of these as soon as I get one built. Might be a week or so as I have too many other projects in the way right now.

Take your time. I am sure it will be epic!

 

[cistercian]

Now my room stinks of burning plastic...I was inspired by both of you to put the beast into action.
It goes through plastic coffee cans completely pretty quick! I burned one of my radio covers too!
after the beam tunneled thru the coffee can! I am lucky I am not fire fighting!

In Chartreuse the beam looks gold. Nice!

 

[Pelagius]

I was away for a bit-other hobbies called! It would go right through.
2Watt effective at killing a dangerous spider. Black Widow. A bite can cause tissue damage and make you sick.

I rescue wolf spiders from my tub and move them outside. I take exception to Black Widow spiders (dangerous venom) by my back door.
I used mine yesterday to take out a Black Widow spider on my back porch. I did not want to spray as I have other critters in my plants I did not want to harm. I have scorpions that do a good job controlling the earwig invasion. Our scorpions have a painful sting if provoked-but are not dangerous-also not likely to colonize my room!
The Black Widow is-and I wanted to get it before it laid eggs.
Focused first at the distance the spider was on rock-then approx 2 seconds on the Black Widow. In nature I would have left it alone.