Descriptions: * This flashlight bulb is suitable for UltraFire WF-501A, WF-501B, WF-501C, WF-501D, WF-502D, WF-502B, WF-503B, WF-504B, WF-501N, L2, C1, etc. * Made of high quality material, durable performance. * XM-L T6 super bright LED light, low power consumption. * Effective and energy-saving, low heating, long service life. * Slide-in LED bulb, easy to install and convenient to use. * 100% brand new and in good condition. * Color: As the pictures show * Light color: cool white * Light source: XM-L T6 * Lighting mode: 5 mode * Color temperature: 6500K-7000K * Brightness: 1000lm * Voltage: 3.7V Package including: 1 * LED bulb Note: The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.