TerraLUX Ministar 5 TLE-6EX-CNC Maglite LED Flashlight Conversion Kit &ndash; For 4-6 Cell C and D Mag-Lite Flashlights - 200 Lumens, 30 Hour Max Runtime LED FLASHLIGHT REPLACEMENT BULB  replace or upgrade your regular flashlight bulb with the TerraLUX by Lightstar Maglite LED Conversion Kit. Convert it into a bright and long-lasting flashlight FOR USE WITH YOUR MAGLITE FLASHLIGHT  1 Pack. Designed for use with your 4-6 cell C and D MagLite torch. The bulb is electronically regulated for exceptional battery life BRILLIANT WHITE LIGHT  200 lumens, this upgrade lightbulb is super bright and emits a consistent light output SUPER EASY TO INSTALL  unscrew flashlight head and retaining collar. Remove incandescent bulb and drop LED Conversion Kit into bulb socket. Replace collar and turn clockwise. Replace flashlight head EFFICIENT, BRIGHT AND RELIABLE  with a 30 hour max runtime, the bulb is super reliable and helps to extend the battery life of your flashlight so that you have light when you need it. LED wont burn out