The Lighthouse Mini core is a rechargeable USB lantern featuring 430 lumens, a brightness dial, a long lasting 

• USB Rechargeable lantern featuring 430 Lumens.
• Features a 1A USB output and enough battery to recharge phones and other small USB devices.
• Up to 350 hours of run time on an ultra-low setting or up to 4 hours on a super-bright setting.
• Recharge the Lighthouse Core from the sun by connecting a compatible solar panel in about 5-10 hours
  
• The Lighthouse Core can be recharged from a USB Source in about 5 hours 

• Cell Type: Li-ion NMC
• Cell Capacity: 16.3 Wh (3.7V, 4400mAh)
• Lifecycles: hundreds of cycles
• Shelf Life: Keep plugged in, or charge every 3-6 months
• Management System: Charging and low-battery protection built-in

Goal Zero was founded to fulfill a need for portable, cost effective power solutions in the Congo. That cause propelled Goal Zero to create solar panels, power packs and lighting products that can be used effectively anywhere in the world. Whether you’re on a humanitarian mission in central Africa, at Everest’s basecamp, or anywhere in between, Goal Zero can keep you powered.