I can't believe ppl complain about photoblocker spray. The product works! I have been using the product for two years now..got flashed twice during that time (when I drove through a yellow once...and when I made a legal right turn while red on the second )...but have not received a ticket. I mean, why would Denver Police and Fox31 News test the product (nothing in it for them) and say "surprisingly effective!"? I think some ppl just complain eventhough they didn't get a ticket while using the product.