Finally got this in the mail. When I turn it on the laser flashing bright then dim over and over. I tried this with two different batteries and get the same results. Any thoughts? I can't imagine its normal and I dread the thought of having to send this back.
I'm interested in the opto. Why are you selling it? Also, I'm new here but have you sold anything else here before or is there a long time member who can vouch for you?