Happy to report that the system of 200 watts and a pwm controller has been more than sufficient to support our energy needs. Very nice to not rely at all on plugging in anywhere anymore! We run an indel b fridge 40L, multiple cell phones and laptops, external monitors, led lights, weboost 4gx cell booster, tooth brushes, other gadgets to charge, hair dryer (for short amounts of time) and not for my hair, just the woman folk. Has worked well in low light conditions and cloudy skies as well.TwoPlusLu said:Installed 200 watts on the roof and wired in through the camper. Four wheel camper factory installed the plug. Out boondocking in Arizona for 2 weeks. Will report back how everything went after the trip including details on the install parts, etc. If all goes well, won't need to turn over the truck for any electricity.