Crank lights
I do have crank flashlights, I recommend them, they are great additions. I think the lower light output from this type source is perfect for 80 percent of my lighting needs, the other 20 percent of the time something brighter may be needed. I no longer recommend mag lights to my friends since there are LED lights that are lighter and brighter than a 3-D cell mag light, and the batteries last sooo much longer than with the conventional bulbs in Mag-lights. Why carry a heavier, less efficient flashlight. I do have to admit that the heavy mag lights would hold up better as a club than my tiny hand sized LED light, but so would a brick, about the same weight, ha. I particularly like the crank lights in vehicles where high summer temperatures tend to bake my regular flashlight batteries. I also use them in bug out bags as an always ready light source, I keep another LED light in the bag, but have to load the batteries which I store separately, thus the crank light is a plus. Crank lights are handy, but they too contain batteries and would eventually require a replacement, maybe every 3-5 years, much longer life than a set of conventional batteries. Replacing a crank light battery requires soldering and a battery that is not readily obtainable by most. Crank lights reduces, but do not eliminate my need for batteries, I keep a supply of alkaline batteries to supplement my rechargeable (NiMh) batteries. I plan to mostly depend on rechargeable batteries and a solar charger to keep my gear up and running, with the crank light providing sufficient light to navigate around my property, and other low lighting requirements .