- HA-III Anti-Scratch?Finish- Takes both 2xCR123A and 1x18650 batteries<br />- Accepted voltage input 3.6V ~ 9V- Glass lens and orange-peel aluminum reflector cup?<br />- Switch type: 1-mode clickie- Ultrafire model number: C2-?Phase-one test result:?5500 lux throw @?1?meter?(+/- 500lux) with Ultrafire 2400mAh 3.7V battery.- Note: this light's the battery?compartment?does not have contact spring on the positive node. So protected 18650 cells (those with recessed positive node) will not work with this light without a small spacer.                                                                                                                                Dimensions: 5.2 in x 1.65 in x 1.65 in<br />Weight: 4.23 oz