HQST 100 Watt Polycrystalline 12V Solar Panel with Compact Design,High Efficiency Module PV Power for Battery Charging Boat, Caravan, RV and Any Other Off Grid Applications

The media could not be loaded. Purchased these panels back in 2024, video and testing from 7/1/2025.I’ve been using this two-pack of HQST 5BB 100W panels wired in series with my EcoFlow Delta 2, and I’m really happy with the performance. With my fridge pulling 122W, I saw solar input peak at around 152W — which works out to about 76W per panel. That’s right within the expected real-world range for panels of this size and type, especially given variances in sun angle, efficiency losses, and environmental factors.Build quality is solid, and they’ve been reliably producing power throughout the day when angled decently. For the price, these are hard to beat — and if you can snag them during a sale, they’re an even better deal.If you’re looking for an affordable and dependable panel setup for small off-grid or emergency backup systems, this HQST two-pack is a great option.

Impressed with the results. I got this kit aiming to generate enough charge that our battery powering our pit box would last 10-12 hours before being low on charge. Instead, these panels have exceeded our expectations and generate more power than we use. Complete kit made it easy to connect to our inverter.

Good quality panel and installed nicely on our camper as a second solar panel source. Packaging was very good and no issues.

Why did you pick this product vs others?:I've used them before so I stuck with a brand that I trust. They seem to be reliable. I've had some in use for about a year and trouble free. I will note that I have never seen 100 watts output from a 100 watt panel. If you are in the planning stage I would figure in a 25-30 % loss. Unless you live at the Equator

UPDATE: First purchase was 11/22/24: Today is 01/06/25:I've been using two of these panels for about 4-6 weeks. Normally, they keep my Acemo topped off, but the last two days were cloudy, and I discovered this morning that I had a bad wire connecting to the panels.It is currently 4:30PM and the sun is well over the other side of the apartment leaving the panels in the shade pointed away from the sun. You can see the reflection of the sun in the clouds. If I backed up, the sun would be just below the clouds on the right.Even in the shade, the two panels are charging the Acemo at 25 watts, now that I replaced the wires. I often get 30-35 watts in the shade, but I'm not getting much reflection today.During the morning when the sun is shining on the panels, I get up to 135-140 watts. When I mount them on the roof below them, they will get more light while the sun is overhead, and during the summer, they will get a whole lot more sun, for several more hours a day.The online calculator for this area says the best I can hope for is 60-65% of the panel's ratings, so 50% is the most I had hoped for and I'm over that mark.I currently only power a few things on the Acemo to keep it exercised. It's primary purpose is to provide power when the grid goes down. With 4 panels, I hope to remove my computer station and lights entirely from the grid. I have them, I may as well use them.My original plan was to hinge two of these panels together for a portable array, but they are really too heavy to port around easily, so I'm going to leave them mounted to the low roof and power my apartment as much as they can.I've seen complaints that someone received different panels when he ordered at different times. I ordered one single, later one pair, and most recently, one more single. I can't tell the difference between any of the panels. so I have not had that issue.The input to my Acemo is just shy of allowing me to use two panels in series. That's ashamed, because I would love to pair them up instead of running all of them parallel.The bathroom scale says that each panel weighs 14.4 pounds.Original Review:I now have 3 of these panels. The first one is in the window and the two new ones are #1 and #2 in the first picture. I was getting 83 watts of charging into my power station compared to 30 watts from 50w panel #3 and 70w from 100w panel #4. They weigh 14.2 pounds by my scale, but the other panels did not reach the minimum measurable weight on my personal scale.The two yard sticks are in the pictures for anyone wanting to compare sizes.For this time of year, 83w is about the most one would expect to get at this latitude this time of year. It probably helps a bit that the temperature outside was only 32 degrees when I got that reading.The wall you see the panel laying against is facing east. In the afternoon to evening, it is in the shade. During mid-afternoon, it was still charging at 25-30%. Of course, when the power station hit 100%, it quit charging.I read some of the negative reviews and they complain about low power and a weak frame. It's hard to know why someone had low power. There are a lot of factors to consider. As for the weak frame, these panels do seem heavy for such a thin aluminum frame. Panels 3 and 4 have the same frame material thickness as this one does. This one seems much heavier.Right now, I am satisfied with my purchase and I am especially happy with the price.

This is my second unit purchased in the last two weeks. First one worked so well, I had to order another one ;) It comes with everything needed to mount it on my truck camper. The cord length is great and should reach any corner. This is a great buy at the price and would buy again. It should extend my battery life and storage capcity is always full. The weight is a bit heavy on my roof, but won't cause any damage. I get the stated amount of voltage on a sunny day.TIP: You should get 4 washers to mount the feet to the panel as the nut will work its way through the "rather large" hole.

These panels are in great shape, better than I thought would happen!

Hardware is weak and doesn't hold up to wind - it failed while driving - they offered a 5% discount - no refund - no replacement - do yourself a favor and buy a more expensive set.