My light burned a hole right through the blue one.

I cut mine to fit into my flashlight lenses because I prefer red or green light at night and these gel poacks are way cheaper than adapters.

They are really shining now, it's like my lights are giving out a new

Good enough for an LED lights, will melt when used with halogens or incandescents.

Used it to make my fish tank light blue!Worked like a charm easy to use