look here
3pcs 1mW Powerful Laser Pointer Pen Beam Light Green Red Blue Violet High Power | eBay
being pen pointers means short runs (30 seconds) with a rest (30 sec.)to allow to cool-- the pic in my sig. is made with same three pen lasers.
3pcs 1mW Powerful Laser Pointer Pen Beam Light Green Red Blue Violet High Power | eBay
being pen pointers means short runs (30 seconds) with a rest (30 sec.)to allow to cool-- the pic in my sig. is made with same three pen lasers.