Bought one of these for a two battery Mag-Lite a few years ago and was very pleased. I picked up a Mag-Lite with 3 batteries the other day and the light was dim suggesting the batteries are running low. I immediately decided that I would order a box of two bulbs to replace my three rechargeable Mag-Lites. Received it the next day, installed it straight away and wow, even with weaker batteries, what a difference. Good bright white light. I recommend them for replacing bulbs in all full-size Mag-Lites.
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