| Color | Black |
| Brand | UltraFire |
| Model | U-33 |
| Quantity | 1 Piece |
| Material | Aluminum Alloy |
| Emitter Brand | Cree |
| LED Type | XM-L |
| Emitter BIN | T6 |
| Number of Emitters | 7 |
| Color BIN | Cool White |
| Working Voltage | 7.2~8.4 V |
| Power Supply | 1 x 18650 Battery Pack (4 x 18650 batteries with two parallel two series、 included) |
| Current | 2800 mA |
| Theoretical Lumens | 4200 lumens |
| Actual Lumens | 3500 lumens |
| Runtime | 2~3 Hour |
| Number of Modes | 3 |
| Mode Arrangement | Hi、Low、Fast Strobe |
| Mode Memory | No |
| Switch Type | Reverse clicky |
| Lens | Glass |
| Reflector | Aluminum Smooth |
| Flashlight Mounting | Handlebar and Helmet |
| Switch Location | Tailcap |
| Beam Range | 300 m |
| Packing List | 1 x Bike Light (70cm) 1 x 18650 Battery Pack (4200mAh with two parallel two series、 50cm) 1 x 2-Flat Pin-Plug Charger (120cm、 100~240V、 50/60Hz) 1 x Headband (50~80cm) 2 x Fixed Rubber O-rings |