I needed an LED PAR in which I could use diffusion gel. I use my lanterns in smaller venues, and some performers get up tight about being blinded by glare, so I use diffusion gel to blur the beam. In order to hold the gel in, you need gel frame, so I have purchased one of these each for my Mini Stage PAR lanterns.
They are very small, thin bits of metal as you would expect. Although they are cheap, it would be nice if they were included in the price of the Mini Stage PAR units.
Good, simple product - performs as you would expect.