Replacing or upgrading your flashlight’s bulb may be easier than you think, and more useful. When old flashlights go dim or stop working, regardless of having new batteries or not, in many cases the problem lies with the bulbs. Just returning a perfectly good flashlight to working order would be enough to warrant the small cost of a replacement bulb in those kinds of cases, but a straight replacement is not the only option. LED upgrades exist to simply and quickly bring older flashlights into the modern era, with far more efficiency and vastly superior brightness when compared to their older counterparts. These bulbs keep old flashlights going like new, and with an LED bulb upgrade, in many cases far better than new.