The smallest member of the GOAL ZERO Lighthouse family packs a big punch. It is a very small USB rechargeable lantern which is dimmable with an IPX6 weatherproof design.  This version has the added advantage of incorporating a 120 lumen dimmable flashlight, making it the perfect dual purpose companion for the weight-conscious adventurer.  The Micro Flash pairs perfectly with Goal Zero Nomad Solar Panels. CHARGING There are 2 ways to charge the Lighthouse Micro: The Sun - The Lighthouse Micro can be charged by connecting a compatible solar panel.  The Nomad 7 Solar Panel can charge the Lighthouse Micro in about 3.5 hours. USB - The Lighthouse Micro can also be charged by being plugged into a USB power source. TECH SPECS Charge Times: Goal Zero Nomad 7: 3.5 hours USB Source: 3.5 Hours Run Times Flashlight: 100 hours (low), 8.5 hours (high) One side lit: 170 hours (low), 15 hours (high) Both sides lit: 80 hours (low), 7 hours (high) Light Full Bright, 4 Lights (Average): 135 Lumens, 3800K Dimmest, 2 Lights (Average): 7 Lumens, 3800K Flashlight, Bright (Average): 115 Lumens, 3000K Flashlight, Dim (Average): 15 Lumens, 3000K Full Bright, 4 Lights (Full Battery): 150 Lumens, 3800K Dimmest, 2 Lights (Full Battery): 10 Lumens, 3800K Flashlight, Bright (Full Battery): 120 Lumens, 3000K Flashlight, Dim (Full Battery): 20 Lumens, 3000K Battery: Cell Chemistry: Li-on NMC Cell Type: 18650 by LG chem/Samsung Cell Capacity: 9.62 Wh (3.7V, 2600mAh) Lifecycles: hundreds of cycles Shelf Life: Keep plugged in, or charge every 3-6 months Management System: Charging and low-battery protection built-in Ports USB port (input): 5V, up to 1A (5W max General Product SKU: 32005 Chainable: No Weight: 2.4 oz (68g) Dimensions: 3.66 x 1.5 in (93 x 37.75mm) Warranty 12 months