Any possible shortcomings of an LED bulb are easily overcome by redundancy - carry or have access to a few lights. I amused a fire fighter the other day when escorting some fire victims into their darkened house to retrieve stuff. I can't see, do you have a flashlight? Here, take mine. Do you have another, asked the second victim. Sure, here you go, and I pulled out my third light for myself. The fire fighter got a kick out of having so many spares, but LEDs are like potato chips, you can't just stop at one.