Nice. I had an idea about making the same sort of product but with gels to change the color of the LED and dim it as well. Haven't gotten around to testing it out but might do it now that I see this.
You can also use nail polish - will block some of the light and change the hue. As many different shades of polish available as you can imagine. Some shades block more light than others
Huh. I hadn't thought of this before. I'll have to give it a try, thanks! That's a super flexible and cheap option, and I imagine some of the opaque nail polishes would probably nearly block it.
No worries! Nail polish is one of my favourite "hacks", quite durable so it's good for touching up bike frames (especially chainstays, which easily chip), aside from blocking excess lumens from LEDs.
