| General Specs | |
| Model | WF-501B |
| Brand | UltraFire |
| Type | LED Flashlight |
| Material | aluminium alloy |
| Bulb Number | 1 |
| Emitter Type | CREE |
| Emitter BIN | Q5 |
| Luminous Flux | 350LM |
| Number of Mode | single mode |
| Charge Time | 4-6H |
| Voltage Input | 3.6-18V |
| LED Service Life | 100,000H |
| Battery Configuration | 1 ⅹ 18650 Battery |
| Features | |
| Waterproof design. OP reflector. Adopts efficient constant current system. | |