Renogy 200 Watt 12 Volt Monocrystalline Solar Panel Starter Kit with 2 Pcs 100W Solar Panel and 30A PWM Charge Controller for RV, Boats, Trailer, Camper, Marine ,Off-Grid System

I am a RV Technician, and a good solar panel is the first thing I add to my personal RVs. Keeps the battery charged, and regardless of usage my battery(1 full one is all I need) is fully recharged by 2:00 the next day, I don't have to remove it during winter as charged batteries will not freeze. The benefits of battery health, and the need for fewer batteries are worth the cost of at least one solar panel.Mono-crystaline panels are well worth the cost, as amorphous panels loose their efficiency after a few years - google it. Mono-crystaline also work in well overcast and low light conditions, as well as performing better in a fixed mount setting.I got the 100 W kit with 30 Amp controller (plan to add more later) with the nice mounting brackets. Simple to install, with the caveat that you need to be smart enough to unscrew the leads before you try inserting and tightening the wires (I saw a review that slammed the quality of the controller because the wires would not screw down tight).I like the 20' of supplied wire (only needed about 8 on my RV, then 25' of 10/2 Romex from controller to battery). I get 15.4 V with sun direct overhead, and the controller knocks it down to 13.1 V to head towards the battery (I get < 0.1 V line loss in my configuration)Good price for the kit, and a well thought out contents. You need to supply the runs to battery and/or load, or use what is left from the 20' supplied. Brackets are super, as I have had to make my own in the past - not fun.Overall a great kit that I wish everyone had installed on an RV, especially those who call me and complain about $200 and up to replace batteries after a winter without removing or recharging them. Particularly important now with the 12 V slideouts - not fun if you dry camp and have to crank them in by hand (remove a lead to motor first, else they will backfeed the 12V system)

Very pleased with the quality of the product and installation documentation. The panels and charge controller are simply great quality. From the reviews I read before buying, Renogy stands behind its system and responds to troubleshooting customers - a big plus over competition in my purchase decision.A DIYer, I wired the Wanderer Charge Controller into the bedroom of our travel trailer to have immediate access to the system status (and to keep it dry), plus two ammeters; one to monitor solar charge rate to a battery bank and one to monitor our power draw from the same battery bank. That gives us the ability to see the automated doings of the Wanderer, which is really a superb quality charge controller.The system package came with everything necessary, except in-line fuses, to get hooked up to our battery bank (four deep cycle 12-volt flooded cell marine batteries with about 300 amp hour storage capacity) and to run the power cable leads about 8 feet away from the trailer. I purchased an additional 50 feet of power cable (on Amazon - Unlimited Solar's - Solar PV Cable Set with 2 x 50FT MC4 Wire Exntensions - 10 AWG) to be able to place the panels away from shade we might park the trailer in. The MC4 connectors are what Renogy uses and are compatible with other vendor MC4 extensions.For now we are laying the panels on the ground; I will build an adjustable stand for future camping trips. So far everything works great, panels have been in 7 hours of sun per day on two camping trips and kept us charged up for daily 12-volt use (lights, water pump, an electronic ignition propane fridge with a constant 12 watt/0.8 amp draw, propane furnace ignition and fan, CO2 detector).We have shifted our lights to LED's (lower power draw bulbs), but I expect this setup would keep up with higher incandescent bulb's power draw in camping spots with ideal panel exposure. I also plan to have a 200 watt AC inverter in the mix and expect that will be adequately supplied by the system.We really like camping away from campgrounds, in BLM deserts and National Forests, so this is a great set up for us. I will recommend to friends!