Model: Ultrafire C1 - Features a Cree XR-E R2-WC LED emitter - HA-III anti-scratch finish - Comes with a carrying clip - Comes with interchangeable Assault Crown and regular smooth bezel crown - Powered by 1 x 18650 or 2 x 3.0V~3.6V CR123A batteries - Input voltage range: 3~8.4V - 5-mode tail cap clicky switch with state memory: Hi > Mid > Low > Strobe > SOS - 250 lumens maximum brightness (manufacturer rated) - 1000mA circuit current output (manufacturer rated) - Regulated driver circuitry - 1~1.5 hours total runtime (manufacturer rated) - Coated glass lens with aluminum textured/OP reflector