These can be used as rifle lamps but beware, use them wrong and everything will scatter, use then carefully and slowly and they work a treat. They come with various scope mounts and a remoted tail switch.
They have another great use, bird scarers. They will move Pigeons and corvids off any field or tree instantly. These are being sold in farm supply shops for £400 a pop
Bought in to test for the above use, minimum order quantity was 5 hence 4 left over.
£190 each delivered. (cheaper than most you see secondhand)