| Color | Black |
| Brand | UltraFire |
| Model | F99-L2 |
| Quantity | 1 Piece |
| Material | Aluminum alloy |
| Emitter Brand | Cree |
| LED Type | XM-L2 |
| Emitter BIN | U2 |
| Number of Emitters | 1 |
| Color BIN | Cool White |
| Working Voltage | 7.2-8.4 V |
| Power Supply | 4 x 18650 (not included) |
| Current | 2000 mA |
| Actual Lumens | 679 lumens |
| Runtime | 2-3 Hour |
| Number of Modes | 4 |
| Mode Arrangement | Others、1-mode: 10%、 2-mode: 30%、 3-mode: 60%、 4-mode: 100% |
| Mode Memory | No |
| Switch Type | Reverse clicky |
| Lens | Glass |
| Reflector | Aluminum Smooth |
| Flashlight Mounting | Handlebar and Helmet |
| Switch Location | Head |
| Beam Range | 200 m |
| Bike Lamp Interface Size | 5.5 x 2.1mm |
| Battery Pack Interface Size | 5.5 x 2.1mm |
| Other Features | Powered by 8.4V series connection and parallel connection 18650 or 26650 batteries pack; Connector: 5.5 x 2.1mm、 battery pack is not included; Long press 2 second to power off; It will change to 60% mode automatically if the temperature is over 60'C; The red light is on under low voltage |
| Packing List | 1 x Bicycle headlamp(70cm-cable) 2 x Gaskets |