Involvement:General (knows how to use it) - Ownership:1 week to 1 month
The price is very good and it has the expected quality, you can hook it up in seconds and start pointing wherever you want. If you want, you can create your custom laser, and put it inside anything you want.
They work perfectly, at least 75% of them! ;)
These modules safely manage up to 4.5 V button type battery power (as in electronic wrist watches) and they did not drain the batteries for more than an hour of work. This is an achievement bearing in mind the very limited capacity of those tyny buttons ;). Standard AAA batteries would last for ages.
A perfect miniature module, an excellent buy!
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