BZBRLZ Metal LED Swing Arm Desk Lamp, 7.8W Dimmable Architect Drafting Lamp for Study/Reading/Office/Work, 3 Color Modes Lamp with Clamp, Dimmable Brightness Desk Lamp with Button Control (18V-B)

I bought this to charge my Goal Zero Yeti 400 during an 8 week road trip this past summer. Goal Zero sells their own panels, but this was much cheaper. I had the idea to mount this on the top of our RV, but ultimately, it was handy to have loose. When not in use, I just placed it under the bed over the driver's cab - out of sight out of the way. But when we parked and I needed to charge the Goal Zero, I could place it outside facing towards the sun.The highest wattage I saw the Goal Zero register as input was around 32W. I haven't used any other solar panels before so not sure if that is normal efficiency, but I do know that you will never get 100%, so overall I was pleased. Only wished I would have bought a 100W panel instead to cut the charging time in half. With the 50W, it would take about 10hrs to fully charge the Goal Zero.

Great Solar panel, put one on top of the RV and it keeps my two Group 24 batteries charged while in storage. In fact it will generate enough power to maintain watching TV and charging phones during the day. Look forward to getting 6 more of these.

Got it yesterday. In late afternoon it was 18 volts and .4 amps which is about 8 watts, wanted to run a 17 watts 12 volt air pump. It just made a tiny noise.Today at noonish no clouds and its 2.73 amps and 17.8 volts wow what a difference, that is about 49 watts. It runs the air pump no problem, sorta magical. The panel is very light and thin. This is my first panel ever looks like a good deal. Will hook up 12v powersupply/controller as maybe the 18 volts might hurt the pump.So bottom line is at noon this thing does put out 50 watts round off to nearest 5 watts.Update at 1PM its 18.5 volts and 2.76 amps = 51 Watts

Excellent. The one I received weighs only 2 lbs. and 3.3 oz. Open circuit voltage perpendicular to sun ( Max transfer of light ) 20v in the desert sun. Short circuit current was 3.1 amps. May 2nd, 2017 at 3pm. What a deal!!! Very happy. Need to use to charge up lithium battery gen. for CPAP machine thru hike Colorado trail.

It does work great , the reason for the 4 stars was the connections , did not work unless I shake the wires , after I replace them whit a regular connectors work fine

While the cables are a bit longer than the AllPower one I bought before, this one seems to be less well made. The surface has naturally attracted dust, but it does not wipe off as cleanly as the AllPower. Had to wash it with water to get the dust off rather than my usual technique of using a car duster.

Great solar panel! I mounted it to my camper van roof, and it often provides about 30 watts steady stream. Surprisingly powerful!

On my stiletto 27