SpecificationThe item is a simple and practical LED dropin module flashlight replacement bulb, which is made of durable aluminum alloy material, and adopts ML T6 LED with a precision reflector to emit bright and even cold white light for illumination. It is a wonderful replacement flashlight bulb suitable for UltraFire WF501A, WF501B, WF501C, WF501D, WF502D, WF502B, WF503B, WF504B, WF501N, L2, C1, etc. With easy to install and use, it is really a wonderful LED dropin module flashlight bulb for choice. Features Color As shown in the pictures. Material Aluminum alloy and LED. Adopt a solidstate ML T6 LED with a precision reflector that creates an even and bright cold white light. Special design, improve the light output in intension and distance Efficient and energy saving, low heating, long life Convenient to install and easy to use.Specifications DC forward current DCDC. LED light color Cool white. Voltage 3.7V. Color temperature 6500K7000K. Lumen 1000LM. Fits for UltraFire WF501A, WF501B, WF501C, WF501D, WF502D, WF502B, WF503B, WF504B, WF501N, L2, C1 UniqueFire M2, UniqueFire R5 TrustFire SR5 SureFire 6P, G2, 9PProduct contains1flashlight without battery Friendly Tips Photo color may be slightly different from the actual product due to color display of different monitors. The size is measured by hand, please allow minor measurement errors. Please feel free to contact us if you have any other questions or need further information.