The item is a simple and practical LED drop-in module flashlight torch replacement bulb, which is made of durable aluminum alloy material, and adopts XM-L T6 LED with a precision reflector to give off bright and smooth cool white light for illumination.<br> It is a wonderful replacement flashlight bulb suitable for UltraFire WF-501A, WF-501B, WF-501C, WF-501D, WF-502D, WF-502B, WF-503B, WF-504B, WF-501N, L2, C1, etc.<br> With easy to install and use, it is really a wonderful LED drop-in module flashlight bulb for choice.Features- n in the pictures.- Material: Aluminum alloy and LED.- Adopt a solid-state XM-L T6 LED with a precision reflector that creates a smooth and bright cool white light.- Special design, enhance light output in intension and distance- Effective and energy-saving, low heating, long service life- Convenience to install, and easy to operate.Specifications- DC Forward Current: DC-DC.- LED light color: Cool white.- Voltage:<br> 3.7V.- Color temperature: 6500K-7000K.- Lumens: 1000LM.- Fit for: UltraFire WF-501A, WF-501B, WF-501C, WF-501D, WF-502D, WF-502B, WF-503B, WF-504B, WF-501N, L2, C1; UniqueFire M2, UniqueFire R5; TrustFire S-R5; SureFire 6P, G2, 9P.Package includes1 * XM-L T6 1-Mode<br> 3.7V 1000-Lumen Cool White LED Drop-in Module Flashlight Torch Replacement BulbFriendly Tips:<br> 1.Due to the light and screen difference, the item"s color maybe slightly different from the pictures.<br> Please understand.<br> 2.Please allow 1-2cm differences because of the manual measurement.