What is the difference between 1W, 2W and 3.5W arctic?

The difference is with the power with the 3.5W model being the highest and able to burn better.

The other difference is with the beam divergence. The 1W and 2W have 2.5mRad, this gives these lasers a longer beam range compared to the 3.5W with a beam divergence of 4.8mRad.


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