Specification:
Use of LS LED, 90 Lumen constant output;
Two voltage type:[4~10V for CR123] or [3.7V For single Li-ion Rechargeable];
Li-ion battery discharge protected.
Aircraft grade aluminium body, anodized black;
Lock-out function;
water proofed;
Body diameter: 24 ~ 25.4mm
Bezel diameter: 32 mm
Length: 127mm
Weight with 2pcs of CR123 batteries: 140g

Run time: 2 hours with 2 * CR123 or 1 hours and 40 min. with a single 18650 Li-ion .