The item is a simple and practical LED drop-in module flashlight replacement bulb, made of durable aluminum alloy material. It features an XM-L T6 LED with a precision reflector to produce bright and smooth cool white light for illumination. This replacement bulb is compatible with 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, and 9P flashlights. Designed for easy installation and operation, it is a reliable LED drop-in module replacement option. Features - Color: As shown in the pictures - Material: Aluminum alloy and LED - Equipped with solid-state XM-L T6 LED and precision reflector for smooth, bright cool white light - Designed to enhance light output in intensity and distance - Energy efficient with low heat generation and long service life - Easy to install and operate Specifications - DC Forward Current: DC-DC - LED Light Color: Cool white - Voltage: 3.7V - Color Temperature: 6500K–7000K - Lumens: 1000LM - Compatible Models: 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 Includes 1 x XM-L T6 1-Mode 3.7V 1000-Lumen Cool White LED Drop-in Module Flashlight Replacement Bulb Note: Due to lighting and screen differences, the actual color may vary slightly from the images. Slight dimensional variations may occur due to manual measurement.