The difference between the aluminum cup and the lamp cup includes the light effect?
Aluminum and plastic lamp cups, small power difference is not big, big power must use aluminium light cup. Light effect aluminum cup. High precision and no distortion
he light effect is different.I hope my answer will help you.
And you have to use the aluminum cup, What you're talking about is the glass convex lens zoom, which is convenient to use, but it's a lot of light. There's also a plastic cone, with a cylindrical hole in the center, a good spot, and a good 3W.
