Comparing two 1watt blue lasers, which one to buy?

[ultralight01]

So I've been looking at the SF501B 1Watt. Then, I found this:
US Powerful Thor Blue Laser Pointer Adjustable Lazer Pen Burn Paper Military 1mW | eBay

How do they compare?

 

[Thejoker301]

So I've been looking at the SF501B 1Watt. Then, I found this:
US Powerful Thor Blue Laser Pointer Adjustable Lazer Pen Burn Paper Military 1mW | eBay

How do they compare?

With mine you will get 6 months warranty.

The SF501B has a larger heatsink than this Chinese laser. The 501B now comes with a 9mm diode. Power is usually around the 1.3W in reality. So Power is guaranteed to be overspec.

:beer:

 

[ultralight01]

A warranty is priceless. Thanks for your help.

 

[Thejoker301]

A warranty is priceless. Thanks for your help.

Welcome