Great little lights to string up anywhere you might need them. Attaches to a rechargeable battery.Goal Zero Light-A-Life Mini USB Chainable LightWHERE TO BUY — TO BUY ON AMAZON: CLICK HERE — THE ESSENTIALSImportance: Handy. Bottom line: Super handy lights you can string in- or outside for extra light. Recommended for: Apartments, Home/Away shelters. No. of units recommended: 2-5. You’ll also need: A travel powerpack such as the Goal Zero Sherpa or the excellent Anker 1300. OFTEN BOUGHT WITHA travel powerpack. We also like the Anker 1300.