I will be doing a video soon on some custom built super micro lanterns, even one that can fit in your wallet, emit the same light or more of a candle 360 degrees , & run for 40+ hours.
Yes, sort of. The entire lantern in only 4.5 millimeters thick, uses a very unique remote-phosphor LED (very hard to find) that emits Warm white nearly 360-degrees like an incandescent bulb, can run from a single CR2032 Lithium coin-cell for 12+ hours brighter than a candle, (tested) then run for an additional 30+ hours dimming down to a moon light, but this wallet lantern has two slots for two CR2032 cells in parallel to double those run times, (or save one as a reserve back-up cell after the first is spent.) I have one in my wallet now. the video will reveal this “24+ hour wallet candle” when i create that topic.