Hello, after a incident with this laser recently I have got goggles with it to prevent any further mistakes. And after reviewing my 1.5w rifle a bit I noticed that there is 1 lense out of the 5 lenses that doesnt seem to have any effect and I dont think there is any glass type substance on the lense part. I was wondering possibly from any rifle laser owners or anyone else what does this lense do I am assuming it is a burning lense but I cannot tell the difference? And if not do I need a burning lense for this because when I was burning stuff today I felt that the laser was underspec at burning. Maybe it is all in my head as the power certificate from Max shows it about 1.6W. Either way I would like to know what this 1 lense does and does anyone know if there is some kind of burning lense I can buy to put on this to make it even more powerful at burning? Thanks for the help.