I've purchased 3 of the Thor series blue lasers over the years from the laser pointer store. (2) 3watts and (1) at 1.5 watt. When I first receive them they are great. Everything I had hoped for. However over short periods of time they seem to lesson. I've always followed the suggested run times of 30 seconds on then 2 minutes off to cool. So they have never become hot. Yet the beams just don't stay as bright as they initially come. 2nd, the spring for the contact of the batteries always melts into itself down and you got to reach in there with a hook or something to pull it out or to go crooked. I tried to bring this to the attention of the complaint department whatever you want to call and as soon as I sent send me a picture of what was going on they quit talking to me. The only reason I keep using them and purchasing from them is Is that there stated power levels are always correct At least I first. Next their price is decent. Lastly The turnaround time from when you order it to receive it is usually less than 2 weeks which I can handle everybody else other places I purchase from is 6 weeks that I can't handle. I need to use a stronger material between the spring and the driver whatever you want to call it the wall between the batteries and the laser itself so that the spring doesn't melt into it. They need to come up with them dial that doesn't lose power after 30 minutes of use... They do that and they'll be the best laser website there is until then they're just the default de facto website to use if you want some sort of decency.. There's a lesser of evils of the websites that you can buy laser pointers from..
