Renogy400W Portable Solar Panel Lightweight Solar Suitcase Foldable with Solar Connectors Compatibility w/Generator/Power Station, Outdoor Camping RV Off-Grid

Be careful when accepting delivery of Solar Panels. The panel I ordered arrived damaged, with a scratch/tear in the protective UV coating for the panel.The box had been pieced multiple times and both ends of the box were resealed by the delivery company, with their branded tape.Because it is important that the protect coating is undamaged, I had to request a return.This actually points out a design flaw, when the 400w solar briefcase is closed, the two outer panels are faced outwards, thus not really protected very well. Even though Renogy provide a case for the solar briefcase it is not padded. Thus providing very little extra protection.This is a heavy solar panel, designed to be transported by vehicle not carried. It is reasonably large too, so if you have a small car, you might want to check if it will fit in the boot.With regards to value for money, it’s priced well against its competitors while on sell at £450. But I would never pay full retail for it. Solar panels need not be that expensive. I can’t say how it performs as I didn’t test it due to the visible damage.I would expect to see real world results from 100w on bright but cloudy days, to 350w on bright days in direct sunlight. Which realistically means I need two of these panels to top up my solar generator (2kWh capacity, only ever used from 80%-20% SOC) while on the road, as we tour in a 4x4. Two awake and two sleeping usually, and only ever stopping for a maximum of two hours for driver breaks when we would actually use the solar panels to top up the solar generator that powers the laptops and other electronics.I ordered a second panel, while waiting for my return to be processed and found the second panel has some clouding and defects on the end panel. Again the box at one end was delivered open. So I suspect the packing is just not up to standard for such large heavy panels. The Blutti PV200S which are smaller, lighter 200w semi rigid folding panels are packaged similarily and arrived sealed and in perfect condition. So I guess Renogy just need to rethink the packaging and possibly the direction that the panels face when closed, so that the are faced inwards when closed.A friend has two Renogy 400w briefcase panels and in testing the we saw 100w-360w out of each panel on an autumn day which alternated between bright but cloudy and direct sunlight. Setting them up is really best with two people, but they can be setup with one person. The stands don't really allow for adjustment of the angle, but to be honest you really wouldn't want to be repositioning these large panels every few hours, you'll probably just leave them out for a few hours from 10am to 4pm and then pack then up.