MP-4S Universal Portable 3500mAh Power Bank + 1W White Light USB LED Lamp Head - Blue
Power supply: 1 x 3.7V 26650 li-ion battery (3500mAh); - Input voltage: 5V; Output voltage: 5V; - Output current: 800~1000mA (Max.) - Can use for 500 times; Battery life: charge and recharge >/= 500 times; - 1W LED lamp head: input voltage is 5V 500mA; Power is 1W; Lumens: 78lm; Color temperature: 6500~7000K.