Never properly worked, even after leaving the solar charger ...
588943
Never properly worked, even after leaving the solar charger in the sun for several days. Lights would fizzle and blink, as though having a seizure.
474774
The light didn't come on, even after 20+ hours of charging in direct sunlight.  I am trying to contact the seller, but have had no response. I purchase items from Amazon at least once a week, and have done so for several years.  This is the first time that something doesn't work and I haven't had a response.  Not sure where to go from here.
3754963
This item never worked correctly, and won't charge the phone at all. I had set it aside as a spare. Once I started to try to use it a couple of months ago, it would work sometimes. Now not at all. It still looks like new.
1578711
Junk, never worked correctly and was returned.
4057602
Straight out of the package the power cord did not work. The battery was very low when it arrived. Two days in the sun and it still had not charged enough to raise the power meter. I connected the cord from my S7 and it worked. I was able to charge it and then charge my S7. But no luck with the built in solar panel as of yet. The included instructions say 12 to 16 hours to charge in direct sunlight, but the initial charge must be done with the power cord. After the initial charge I have continued to try the solar charge feature. 6 hrs in full sun with no increase in power level. I purchased two of these for camping trips. Neither will recharge from the solar panel ( yes its blinking, but not raising the power level ) Do not buy these for the solar panel feature.
3529308
This solar charger, powered by usb charged the first time I tried, but since then won't hold a charge. It won't charge at all via solar power, and my phone doesn't even recognize that it is plugged in when I try to use it.

Edit:
I left the above review, and although it took a while, the seller got back to me, and after determining that my device was damaged, offered to send me a new one at no cost to myself.
3401027
It will never charge by the sun.  I have had my trying for (3) days, and nothing.  This is very disappointing since that is the main reason I bought it, though being able to charge (2) phones is nice, and it does do that well enough.  They shouldn't even advertise the solar part of the device, it is junk.  At least the device is cheap, not worth the effort to send it back.  Also, plan on never getting a response from the company when you leave message.
823679
Never worked! Battery is charged and the power switch is on. I see many others have had the same results!
4503464
The charger did not work out of the box. I had to throw it out.
2191741
I've tested this device for about a month. The solar charging function does not work. The charger charges from the cable just fine, but when I try to charge anything, it worked only once, but you had to turn it on a few times... it shuts off on its own before something is charged. My last attempt had the device actually drain the power left in my phone. The flashlight worked. Buy this item if you want to drain the power from other device batteries. Ironic?
3099263
Id give it a zero if i could.  Doesn't work. Never did work or charge from the sun
4172600
WORKS OK AS POWER BANK, BUT AS A SOLAR CHARGER SUCKS
1766085
It doesn't work... the "solar" aspect doesn't work at all, it just sits still, even after sitting in the sun for hours.
2454474
Product does not work!  I have several solar lights, but this is the first time I have a product that does not work from the first time I take it out of the box.
1058323
The product arrived at my dads house and he reported the solar panel was detached and it appears the red and black wires were not connected and do not appear to be set up to connect to anything.  He said the wires look as if they had been attached but are no longer attached so the solar panel will not work.

He also reported the fan works well when plugged in.

Because I had sent this to him to use while st the lake fishing and not with power, his fathers day gift will be returned.
3136932
Mine never worked. All three settings do nothing. I disassembled it and found that it has no power source or circuit board of any kind. Just some wires that go to the parts that had to be there, like the switch, meter and the tiny solar cell. After looking it over its easy to see it was not ever intended to work.  At best the meter may move from setting to setting but mine didn't. On the upside the vendor fully refunded my $.
3185937
Product did not work from start (won't turn on even after charging) and the return/replacement process has been a huge pain.