Solar Panels 640 Watt N-Type 18BB, 25% High-Efficiency | 2PCS 320W Solar Panels for Homes Rooftops Farms yards sheds Off-Grid Systems, Efficient Power in Less Space, IP68

I feel like I have enough experience with these panels now to write a review. I’m not going to be overly technical or anything because I don’t have that type of background or ability. I’m just going to tell you my experience and how they’ve worked. I’ve ordered these panels three times and I’m ordering another two now. My first order one of the panels was shattered. I contacted Amazon and they sent two more panels out and did not force me to send the other panels back. Meaning I got three panels that were working even when I’ve only ordered two at that point. I expanded the array by ordering more panels. And again expanded by ordering more yet again. One order was damaged out of three, not to mention the replacement that they sent which can be considered a delivery or order if you want so four deliveries with one panel damaged. In total, I have eight panels. I’ve had these set up 2 series 4 parallel, 3 series, 2 parallel, 6 series, and 4 series 2 parallel. All worked as expected and excellent. Right now I have 4 series 2 parallel, which is sitting at about 120 something volts as my new inverter requires 120 V before the MPPT makes use of PV. This is why I’m ordering two more so I can do five series 2 parallel and be well within range for my MPPT. That said eight panels is 2560 W, after inverter and light load of about 200 W I am getting about 1950 W into the batteries after load. I would say that pretty nice for the panels. When I get the two more panels, it’ll be 3200 W and based on my experience thus far I expect to get between 2400 and 2600 watts charging my batteries daily, slightly more actual wattage running inverter and light load. The connectors on the back of the panels are easy to work with and seem to be very well-made. All the seals and seems everywhere with the wires and the seal to the frame seem to be well done. I happen to be very lucky to have the extra panel that Amazon sent me when one was broken because of the wind storm that shattered a panel that was in the active array. So of 10 panels that I’ve had eight survived. One died in shipping, one died in the line of duty. I’m very happy with these panels. I wish they cost a little less, but they are reasonably priced. I get five stars because the shipping incident was taken care of and the panels have been performing very well in many different configurations. If I had to do it all over, I would have ordered all the panels in one shot instead of making multiple orders. However, it’s worked out and I am happy with the purchases panels have been working for about two years now.

I purchased this for a van build. On the first trip, we spent 9 days off-grid. It worked awesome. Even on cloudy days we were receiving a great amount of charging power. I paired it with (3) 300Ah batteries running a 12V AC with inverter for appliances. It recharged the batteries well each day. We were never without full power when traveling due to a near full recharge daily - even with a few days of rain included.

High quality solar panels that perform well. By purchasing a package of two panels, they are a better value. I have used different Renogy solar panels for the past ten years and have found them reliable and easy to mount and install on my RV's without adding too much weight. I will be using the new 320 watt solar panels on my off-site storage building.

Perfect size. Not too heavy and bulky for this 72 YO. But not so small to need so many. The biggest bang for the buck are panels way too big to be used on flexible ground mounts. These are perfect.

I love these. I Have 3 sets installed on my 26 ft class A RV. For a total of 1,920 watts of solar on the roof which is enough to run my roof top Air conditioning on 2500 watt inverter for up to 3 hours on a sunny afternoon.

Came in properly packaged but both panelas are a little bit damaged most likely in the factory. One has a scratch on the outer glass the other one has bent on the frame. I connected them to the inventer and they gave me 380w in full sun with correct angle and temperature 77 degrees! One of them should generate 320W. I have different brand 4 panels 100W and at the same time got 350W. Something is not good with those panels. I expected at least 300W from one. Wasted money.

great product. could be packed better. Once panel broke during delivery. check you arrival(as on open completely and check)

Put them on a truck camper and they seem to be working great. No complaints.