This last week, our Target store (Arlington Texas) had the maglight C or D cell LED conversion bulb that normally sells for 10$ on clearance for $2.68. These bulbs are fairly bright and actually will work in just about any light that is in the 3 to 12 volt range. Brand is Nite-Ize. I've been using these bulbs for years in maglights, and other D-cell lights with never a failure and great battery life. I bought all the bulbs thet had at this Target, and upgraded a couple more lights around the house.