the dynamo lamp is an incredibly practical accessory in the survivalism, it is the night that you will be most vulnerable then no question of falling out of batteries, with the dynamo lamp it is solved in only a few turns of roping.
Foldable LED lantern, rechargeable by USB and which can charge a phone.
Folding LED lantern that recharges its lithium battery thanks to the sun.
ideal for the long term: no batteries so no breakdown! Turn and reload!