KaruSale Solar Power Bank Portable Charger 50000mah Battery Pack QC3.0 Fast Charging 20W 2 USB Waterproof Camping Travel External Backup Phone for iPhone, for Samsung, Android (Black + White)

It fulfills the functions and has good charging duration

Untested. So far so good

The power can save in the band is lower than What they say

Just received device got it fully charged. Read the directions that had to be written by a child. Did not say how to turn on the lights and I finally found the switch. Turned on the light but the switch will not turn them off. So had to leave on. How do you turn off the lights? Charles Bryant Feb 7, 2019. Just got a replacement for the device that I could not turn lights off. Same problem. Sending back and not asking for a replacement. Twice is enough. No response as to how to turn off. Of course thought pressing the button I used to turn on would work. Wrong. Might add a very strong long lasting charge but do not wish to leave lights on until charge is depleted.

GREAT