Aside from glass-dome LEDs (are there any cheap 3w ones?), what is a cheap way to protect the silicone dome of a 3w cree? No lensing is needed; a very wide angle would be best.
I've already ordered some chinese convex lenses of 13, 15, 18, 20 and 23mm, and will try siliconing them on, but there probably is a better way... some simple clear plastic covers possibly... but I don't know what they are called.
I've already ordered some chinese convex lenses of 13, 15, 18, 20 and 23mm, and will try siliconing them on, but there probably is a better way... some simple clear plastic covers possibly... but I don't know what they are called.