No more darkness in offices, homes, etc with these rechargeable LED dual-tube lights with 90 LEDs. 4000 Amh maintenance-free lead-acid battery (over 100,000 hours useful life) Attached hook for portability or hanging as needed. Facilitates ceiling hanging (has a manual switch and operating string if hang on the ceiling). Recharge with A/C (240V), solar, or adapter. Up to six hours of continuous lighting between recharges (2 hours at brightest level). Output supply of 6.4 volts, possibly to charge other items. Do not stay in darkness during power blackouts. Order yours online today on Jamboshop and have it delivered to your doorsteps. You won't regret getting this product.