If you are looking at getting a 7 watt take my advice and DO NOT use a G2 lens... I did a test from 20 feet away using a 3 Element lens and then a G2 lens.
3 Element divergence was... 1 3/8 inch.
G2 Lens divergence was..... 3 1/4 inch.
Sure you will get a bit more power out of the G2 but you're pretty much gonna have a 7 watt blue flashlight.
3 Element divergence was... 1 3/8 inch.
G2 Lens divergence was..... 3 1/4 inch.
Sure you will get a bit more power out of the G2 but you're pretty much gonna have a 7 watt blue flashlight.