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keep a battery on the charger. the batteries get weak within an hour or so typically, and when they have less power, the beam is less visible to anyone else. I use these green lasers for astronomy presentations, since they are very handy to point out objects in the night sky. Do not point them at other humans, aircraft or cops.
Verified purchase: Yes | Condition: New
I purchased this pointer to sight in scopes. For this it works great. DO NOT expect this laser pointer to ignite Safty matches, lifeboat matches, kitchen matches, char cloth, or black paper - the pointers I received DO NOT EVEN COME CLOSE. My battery lost power before ANY ignition occured.
Verified purchase: Yes | Condition: New
the add clearly states burning. This laser will not generate any heat and will not light anything on fire also the focus is sloppy loose causing you to not to be able to focus the beam it is pretty bright and you can see the beam far off it just does not make any heat so no burning this would get 4 stars if I did not buy it because the add listed burning and I needed a burning laser for a project
Verified purchase: Yes | Condition: New
This laser worked for the first maybe 10 mins. Then it was out up for about 2 wks. Took it out to use and it was like the battery was dead. Charged it an hr. Tried it again. Plugged it in over night. Same thing. It starts working. Lasts less than 1 min and the goes to a very faint spot that you can barely see. Let off the button and push again. Starts strong for a few seconds. Then fades out. We been trying it for 2 days. Just does the exact same thing. We don't know if it's the battery or the switch or the laser. Disappointed.
Verified purchase: Yes | Condition: New
It's a good laser pointer, visible in daylight, but it doesn't burn anything. It feels slightly warm on my hand. The beam is adjustable from parallel to diverging. There is a key-operated switch for safety. The charger works but the negative battery connector is made of thin, "bendy" metal.
Verified purchase: Yes | Condition: New