My only concern was no panel mounting hardware. You should buy that adjustable kit if you use this product. The unit itself and the micro-controller are very nice. Solid performance even when the sun is just barely on it.Still early but so far so good on keeping two deep cycle batteries charged.This controller has a 'load out' side, but it doesn't tell you that you must have a 12V battery connected to the controller before you can use the load out. In fact, you must have a 12V battery connected to the controller before you can even connect the solar panel to the controller. The best I can get is 13.2 volts from the solar panel on a clear, sunny day. I was planning on over 14V to keep my deep cycle battery charged. I use this system in an enclosed trailer to keep two motorcycle batteries fully charged on trickle chargers. So far, it seems to be working effectively, though time will tell how efficiently it maintains the deep cycle battery at only 13.2V of charging. I have the chargers on a timer, and only run the trickle chargers for 5 hours each morning so the deep cycle battery can return to full charge (hopefully) by nightfall. On the good side, once I figured that out, installation and set up is pretty straight forward. I didn't buy a mount/kit, so simply used a TV antenna mount from Lowes and some 1" PVC to make a pole to mount the panel on and clamped it to the trailer.Solar panel construction looks good. Measured power output was exactly as advertised. Charge controller has poor solder connections and apparent cold solder joints of some of the through hole parts on the circuit board.Only downside is the controller does display incoming current from the panel.But I just use the MM for that, produces about 1.9Amps @ ~13.7V which is great!Mounted on truck tool box in bed to maintain Aux truck battery, used 1"X1" treated to elevate and mount.I like the ease of use, installation is easy for most diy that have a basic understanding of electrical aspects and flow. I just wish it performed better in cloudy environments. I don't like how the controller seems to use alot of power at night. You definitely need to isolate the controller from your battery when not in use. I installed a switch on the battery wire to isolate. It can run my subwoofer for over an hour, which was decent. I mostly use it to listen to music in my car for now but plan on making my own solar generator soon with more power.I bought this kit for using on a chicken coop, combined with an old motorcycle battery, a shelly one smart relay, and a spare 12v led light, it makes for quite a nice budget low voltage lighting system. There are however some limitations of this charger that you should be aware of before choosing it.The built-in timer is only a delay from sunset when the panel stops making power. To use this with a chicken coop, it's best to set it to aways on and use a separate timer or smart relay to be able to turn on the light before sunrise instead.Also, the charger doesn't match the provided instruction sheet completely, particularly in regards to changing battery type between flooded/absorbed/gel battery type. This is more important if you're using fancier batteries, or if you care more about keeping them in top shape.Otherwise, when I bought this set, it was right about $50, and I can't really complain for the price. It's not as nice as the solar installation on my rv, but it also only cost about 10% as much. I'd say this solar kit still a 5 star product given the price consideration.Easy to install. No complaintsThe attached cables are a little short, but easily extended.My particular set up is for charging a 100AH 12V battery in a shed for LED lighting.Even on overcast days the voltage is >= 13.2 volts. In direct sunlight the voltage reading is 14.7V when charging the battery.A good buy at the price.I purchased this lit to keep my Ford Focus battery from going flat when the car isn't being used for several days. So far this kit is doing its job and charging the battery even on cloudy days. I have the solar panel on my front dash and its seems to have no problems getting enough light to enable a charge to the battery. I did have to rig up some quick disconnects to the supplied cables and run them past the door seals and through a gap to the engine bay, and so avoid drilling holes. This works for me and so far no water ingress during rain, so I will keep things like this for now. The only part of the kit I can complain about is the solar charger LCD display as its impossible to read outdoors during daytime, even when shaded from direct sun.Connected controller's battery terminals to small 12v car battery (40Ah or so).Connected controller's load terminals to 12v timer and timer to 50W water pump.Pump only runs for about 30 minutes a day, but battery has always been kept topped up.Previously used a 10w solar panel to try and prevent car battery going flat but still had starting issues due to the battery power being too low.So decided to upgrade to a more powerful solar panel, this one has a power controller which can be fixed in a permanent position, i haven't done but its necessary to place it in a position with air to keep it cool ,which is easy and so far no further battery or starting issues, so i'm happy with my purchase and can recommend.30W kit. Installed on shed to power MR16 led lights and charge 14AH Gel battery.Seems to be working well so far.Controller manual could be more descriptive.