LED Flashlight Bulbs Upgrade E10 Base 3W DC 3_7v 4_2v Replacement Part LED Conversion Kit Bulb 2-16 Cell C and D for Headlight Bicycle Torch Flashlights lamp Warm White 2-3 Cell C and D 3_7V

Base: E10 Power : 3W Voltage : DC 3.7V Beam angle:110 degree Color Temperature: 3000K Material: metal + plastic + glass  Luminous flux: 200 ~ 210lm  Product size: approx. 23mm * 9mm / 0.9 * 0.4inch  Delivery weight: 25g  Packing Include: 1x Bulb  Function: Tourch,interior lights,Bike,Torch lights, Flashlights,Work Lights,headlight   Note: 1 C/D Cells = 1.5V, Please choose the voltage according to the cells of your flashlight! Please pay attention to the polarity, the bulb will not light or will not burn if you connect poorly. This bulb is E10, power 3W, please install it on the appropriate flashlight. Please pay attention to the choice of color,we have cold white and warm white