I have had 2 of these lights for years and just ordered 3 more. I live in a rural area and am outside a good bit at night. I would say medium-heavy use. The bulb that comes with it is bright and good for regular 6v batteries. I do use rechargeable 6v lantern batteries though, with maglite 4-cell C&D Krypton or 5-cell C&D Krypton bulbs. The trick to rechargeable batteries is do not put a battery in right off of the charger, you will burn out the bulb, especially the bulb that comes with it, however it is very bright for regular batteries. I do keep extra batteries and bulbs. There are better rechargeable flashlight setups, but for the price this works great!