| Brand | LetterFire |
| Model | LF19 |
| Quantity | 1 |
| Color | Red + black |
| Material | Aluminium alloy |
| Emitter Brand | Cree |
| LED Type | XM-L |
| Emitter BIN | T6 |
| Color BIN | Cool White |
| Number of Emitters | 1 |
| Working Voltage | 4.2 V |
| Battery Configuration | 4 x 18650 |
| Circuitry | 2A |
| Brightness | 400 lm |
| Runtime | 120~150 Minutes |
| Number of Modes | 4 |
| Mode Arrangement | Hi / Mid / Low / Fast strobe |
| Mode Memory | No |
| Switch Type | Reverse clicky |
| Switch Location | Back-end |
| Lens | Glass |
| Reflector | Aluminum Textured |
| Flashlight Mounting | Handlebar |
| Beam Range | 200 Meters |
| Strap Included | No |
| Clip Included | No |
| Packing List | 1 x Bicycle light 1 x Charger (AC 100~240V / 110cm / 2-flat pin plug) 4 x 18650 Batteries (pack / 110cm cable) 2 x Headlamp strap (35cm) 2 x Rubber rings 1 x Chinese & English user manual |