Definitely not ringy. I have 6. It works very well.
Very nice light for the price. Brightness about 100 lms with AA. 225-250 lms with 14500.
I thought 14500 would fry the driver easily, but not in my test.
I’ve been playing rough upto 20 min (with Sanyo 14500, like 20-25x), amazed that it still endures very well. I used thermal paste on the star.
Somehow I expected the test unit fail with 14500 after rigorous tests, but so far so good.
Basically, I left it on table for 20 min untouched with no additional air circulation (like a fan), measuring the head with IR temperature gun.
15 min - 60C
20 min - 65C
Room temp: 32 C
If I hold it in my hand for 15 min, I can feel the heat, but still able to hold it without a problem. It feels very warm with my hand absorbing the heat.
Plastic reflector, but glass lens
Runtime:
- Alkaline AA - 55 min
- Sanyo 14500 840mah - 50 min
- Fake Trustfire Flame 900mah - 20 min :bigsmile:
- Sony NIMH 2000/Eneloop 2000 - 55 min
- Eneloop Pro/XX 2550 - 90 min