Dynamo Hand Crank Solar-Powered Lantern, $20 (was $44) at Amazon. Source: Courtesy of Amazon. The best part about this lantern is that it can be powered in four different ways.

- According to a TMR study, the global hand crank power generator market was valued at US$ 18.6 Mn in 2022 and is projected to expand at a CAGR of 8.3% during the forecast period from 2023 to 2031.