zyxwv99
0
- Joined
- May 6, 2013
- Messages
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17 days ago I ordered a 200mW 808nm laser from O-Like. (High Power Infrared 808nm 200mW laser pen /burning [OL-H808-200] - $36.99 : Zen Cart!, The Art of E-commerce)
It arrived today. I put in two AAA batteries, Walgreens generic alkaline. (The ad says 2xAAA) The second battery doesn't quite fit into the little sleeve in the tail cap, so I put aluminum foil in there to make the connection. Otherwise you have to force the battery in so that the outside of the battery scrapes off.
The first issue is it doesn't look very bright. So far so good. 808nm is infrared. It's supposed to look dim.
The second issue: I can't feel any heat, even when holding it 4 inches from my hand for 10 seconds.
At 4 inches the beam focuses to a square about 1/16 inch across, or about 1.5 mm. Any closer and it becomes a vertical bar, any farther and it becomes a horizontal bar.
I do not have a Laser Power Meter.
Shouldn't a 200mW "burning" laser generate some sort of heat? Am I doing something wrong? :can:
It arrived today. I put in two AAA batteries, Walgreens generic alkaline. (The ad says 2xAAA) The second battery doesn't quite fit into the little sleeve in the tail cap, so I put aluminum foil in there to make the connection. Otherwise you have to force the battery in so that the outside of the battery scrapes off.
The first issue is it doesn't look very bright. So far so good. 808nm is infrared. It's supposed to look dim.
The second issue: I can't feel any heat, even when holding it 4 inches from my hand for 10 seconds.
At 4 inches the beam focuses to a square about 1/16 inch across, or about 1.5 mm. Any closer and it becomes a vertical bar, any farther and it becomes a horizontal bar.
I do not have a Laser Power Meter.
Shouldn't a 200mW "burning" laser generate some sort of heat? Am I doing something wrong? :can: