So I finally got a rrt01 and assembled it to use with 18650. Never feel 20 minutes of runtime enough for such a nice light. I am not a modder so I had to wait for the new version of the rrt01 with OP reflector. No, the ringy beam does not bother me but a smoother beam is just better. Now I have a light that does the followings:
1. Slim 18650 to fit in pocket.
2. Below 0.5 lms to 500 lms for most of my needs.
3. Single hand operation without changing grip. Yeah, handshake grip most of the time.
4. Longer than original tube so I don't feel like the light will fall out of my hand when adjusting the brightness using one hand.
5. Floody beam for close to medium distance so I don't have to point the hotspot.
6. Long runtime with 18650 instead of 18350.
7. Finally, thanks to the OP reflector, smooth beam pattern.
1. Slim 18650 to fit in pocket.
2. Below 0.5 lms to 500 lms for most of my needs.
3. Single hand operation without changing grip. Yeah, handshake grip most of the time.
4. Longer than original tube so I don't feel like the light will fall out of my hand when adjusting the brightness using one hand.
5. Floody beam for close to medium distance so I don't have to point the hotspot.
6. Long runtime with 18650 instead of 18350.
7. Finally, thanks to the OP reflector, smooth beam pattern.