| General Specs | |
| Brand | UltraFire |
| Model | WF-501B |
| Color | camouflage |
| Type | LED flashlight |
| Material | aluminum alloy |
| Emitter Type | CREE |
| Emitter BIN | SST-50 |
| Emitter Color | white |
| Mode | 5modes |
| Mode Arrangement | Hi> Mi> Lo> Fast Strobe> SOS |
| Luminous Flux | 1300LM |
| Battery Configurations | 1×18650 battery (not included) |
| Working Voltage | 3.6-4.2V |
| Switch Location | tail-cap |
| Continuous working time | about 1hour |
| Reflector Material | aluminum alloy |
| Service life | about 100,000hours |
| Others | water resistant |