The blue laser pointer is very powerful and the beam it emits is focused on the entire block (so you can glow and see in the yard behind the road I am going). For my own purposes, this allows me to double the search range while walking. They are always frustrated with cheap postage or similar laser modules. My only downside is that once you turn it off and return to the next setting, you have to scroll to get to the setting you want instead of staying as it is. I have to try this. I dropped my pretty face and messed up. It looks well made and durable. My only move is to switch between different laser pointers. I almost always want the most powerful output.
Therefore, measuring with a high powered laser power meter is the most reliable method. If you think the energy meter is too expensive, you can observe the beam with the naked eye. For a green laser, a beam of less than 5mW is invisible, a beam of 200mW is bright, and a beam of 1000mW is thicker, which can instantly light a match. Some of the things I noticed are that if you turn it off and then quickly turn it back on (check again what you might see), sometimes the settings of the 50000mW laser pointer are changed. There is a small spring used to hold the battery in the charger, the spring has been disconnected and is now in the charger. The charger wire at the junction with the charger has been blown up, that is, after use.