The Niteye TF20 is on the smaller end of the company's 2 cell rotary ring light line of products. It is powered by 2 CR123s or 1 18650 and uses an XM-L U2 LED that produces 480 lumens on max output.
1. Light source: 1xCree XM-L U2 LED
2. Battery: 2xCR123 0r 1*18650
3. Output & Runtime:2-480LM/1-60Hours
4. Output regulation: magnetic ring infinitely variable dimming switch and tail cap switch
5. Circuit design: constant current circuit, constant brightness.
6. Working voltage:3-6V
7. Waterproof to IPX-8
8. Material: stainless steel and aerospace aluminum
9 Dimension: 142 mm(L) X 33 mm(D)
10. Weight: 132 gram