The UltraFire WF-502B is a compact tactical-style LED flashlight built around the familiar 18650 battery format. If you are comparing one for a car kit, walking, work, or emergency gear, the key choice is whether you want the original 502B format with a separate battery and charger or a newer USB-C rechargeable model.
Independence: This site is not paid by this brand and has no commercial relationship with it, and this page carries no purchase or affiliate links.
What is the UltraFire WF-502B?
The WF-502B is a flashlight body sold in versions with different LED modules and mode counts. A published WF-502B listing describes 1-mode and 5-mode versions, a claimed 1,000-lumen output, a claimed 200-meter beam distance, IPX6 water resistance, and a rotating holster. Those details matter because two listings using the same WF-502B name may not be the same configuration.
An older hands-on listing for a WF-502B with an XP-G R5 drop-in identifies a reverse-clicky tail switch, glass lens, 18650 or two-CR123A battery compatibility, and tail-standing ability. Treat that as a description of that particular older configuration, not a promise about every WF-502B now offered.
Which battery and charger does it use?
The common setup is one 18650 rechargeable lithium-ion battery. Some older WF-502B configurations are also described as accepting two CR123A cells. The battery, charger, and light must all match: check the exact option name before adding anything to a cart.
| What to check | Why it matters |
|---|---|
| Battery format | Confirm that the light is configured for one 18650, or that its listing specifically states two CR123A compatibility. |
| Included items | Some listings are for the flashlight only, so confirm whether a battery and charger are included. |
| Charging method | A separate 18650 charger is different from a flashlight with USB-C charging built in. |
| Cell orientation | Follow the markings inside the battery tube before closing the tailcap. |
For a simpler rechargeable setup, compare the newer zanflare f1 rechargeable led flashlight with the older battery-and-charger approach. For a preparedness kit, the broader flashlights, survival and personal safety guide can help you decide what backup lighting belongs alongside it.
What does the WF-502B offer for everyday use?
The 502B format suits someone who wants a small, cylindrical light that can ride in a pocket, glove box, tool bag, or emergency tote. The reported 5-mode version gives you more output choices; the 1-mode version is the straightforward option when you prefer one switch press for light. A rotating holster may be useful when you want to carry it on a belt rather than loose in a pocket.
If your main job is around-the-house lighting or a compact emergency light, compare the carry style and charging plan with the fuso light. If you specifically want a tactical-light comparison, see the taclight max review.
Can you replace the bulb, switch, or holster?
The WF-502B is associated with a replaceable “drop-in” LED module in older configurations. The accessories catalog also shows that the UltraFire line includes tail switches, remote pressure switches, holsters, belt clips, and LED reflector modules. Match the replacement to the exact flashlight body and option before ordering; an accessory labeled for a 501B is not automatically a match for a 502B.
A replacement is worth considering when the body and threads are in good shape but the switch, holster, or light module is the part that needs attention. Save the model name, battery format, and any SKU shown on the listing before you start comparing parts.
What does an UltraFire WF-502B cost?
A WF-502B listing showed a $19.99 flashlight-only option on October 21, 2026, with a $22.99 comparison price. Prices, options, stock, shipping charges, and bundles can change, so check today’s checkout total before you decide. The rechargeable cell, charger, and replacement accessories can change the complete cost more than the flashlight-only price suggests.
Is the WF-502B the same as the WF-502BX?
No. The WF-502BX is presented as a separate rechargeable tactical flashlight with USB-C charging and a claimed 1,000-lumen output. That can be the more convenient route if you want to charge the light directly rather than manage a separate 18650 charger. The WF-502B remains the model to compare when you specifically want the older 18650-body format, available modes, or replacement-part ecosystem.
Before you order
- Confirm the listing says WF-502B, not WF-502BX, 502UV, 501B, or another similarly named model.
- Choose the exact mode option you want: one mode or five modes.
- Confirm whether the package includes the 18650 battery, charger, and holster.
- Check the checkout total, delivery estimate, return terms, and the model compatibility of any replacement part.
- Keep the order confirmation and model details so a later battery, switch, or holster replacement is easier to match.
By InfinitePowerSolutions.com Technology Desk
