| Color | Black + Gold |
| Brand | LetterFire |
| Model | YXS |
| Quantity | 1 Piece |
| Material | Aluminum alloy |
| Emitter Brand | Cree |
| LED Type | XM-L2 |
| Emitter BIN | otehrs、 |
| Number of Emitters | 1 |
| Color BIN | White |
| Working Voltage | 3.7-5.5 V |
| Power Supply | 4 x 18650 batteries、 in series; suitable for 3.7~5V voltage. |
| Current | 1.8 A |
| Theoretical Lumens | 1200 lumens |
| Actual Lumens | 900 lumens |
| Runtime | 3 Hour |
| Number of Modes | 5 |
| Mode Arrangement | Hi、Mid、Low、Fast Strobe、SOS |
| Mode Memory | No |
| Switch Type | Reverse clicky |
| Lens | Glass |
| Reflector | Aluminum Smooth |
| Flashlight Mounting | Handlebar and Helmet |
| Switch Location | Tailcap |
| Beam Range | 100 m |
| Packing List | 1 x Bike light (cable-29cm) 1 x USB cable (80cm) 1 x Chinese / English user manual 1 x Clip 1 x Protective case |