HQST-100W 12V Monocrystalline Solar Panel, High Efficiency Module PV Power for Battery Charging Boat, Caravan, RV and Any Other Off Grid Applications(2-Pack Solar Panels)

I bought these panels for two reasons: The price and the size. I have actually bought 16 of these panels - 4 different times I've purchased the 4-pack of 100 watt panels. They are nearly $100 cheaper for the 4-pack today than they were when I bought the first 4-pack. As of March 18, 2023 they are $274.99 for the 4-pack of 100 watt panels and there simply isn't a better deal for new panels than that anywhere. The other thing that steered me towards these was the size. I wanted to be able to take these with me - at least a few of them - on the road if I needed to and as someone who doesn't own a truck or a van, these panels were the perfect size for being able to toss them in my car. And they are rather light weight, too, on a single panel basis at just over 13 pounds. As for the panels themselves and how they work - they work great. During a clear day, at peak sun, I will get anywhere from 97% to 102% of the rated output of the panels. In order to get that kind of output you are going to need to dial in the angle of the panels, but if you do get it right you can get the full output with these. The only "con" to these panels is that the MC4 cables are a little bit short. You have plenty of room to connect one panel to the other when they are next to each other, but compared to some other brands they are a bit shorter cables with less wiggle room for your potential set up. As noted though - you shouldn't have any issues connecting one to the other if they are next to each other. This "con" is very nitpicky, but it felt worth mentioning as not every person purchasing them will be mounting multiple panels that are touching each other. If you are in the market for 100 watt panels then I would very highly recommend these.

I bought these for my husband for Christmas. They work great.

I upgraded my backyard yard lighting setup from a basic 100W panel to this HQST N-Type 16BB 200W Bifacial Compact Solar Panel, and the difference has been clear right away. My old panel struggled to keep the yard LEDs and a couple of garden spotlights running through the night, especially after cloudy days. This new panel charges my 12V battery bank noticeably faster and gives the lights more consistent runtime and brightness without needing to add extra panels or batteries. The bifacial design is a nice bonus in my yard setup—I mounted it a few feet off the ground on a pergola, and the rear side picks up reflected light from the lighter surface, adding a bit of extra yield during shoulder hours. What really stands out for a home DIY install like mine is how compact and lightweight it is. At roughly 30 × 46 inches and around 20–22 lbs, it was easy for one person to carry and position without any heavy mounting hardware or structural changes to my existing setup. The all-black frame and clean look blend into the garden better than bulkier traditional panels, and the build feels solid with its aluminum frame and weatherproofing. I was able to use the same basic mounting points I had before, which saved time and hassle during the swap. Performance-wise, the N-Type cells with 16 busbars seem to deliver strong efficiency in real-world conditions. Even on partly cloudy days I’m seeing solid charging current through my 40A MPPT controller, and the system recovers faster after shading from trees or the house. The higher wattage in this smaller footprint means I now have headroom to run the lights longer or potentially add another low-power feature later without overloading the battery. It’s been a straightforward plug-and-play upgrade with standard MC4 connectors. One detail worth noting for anyone matching this to a specific system: the open-circuit voltage measures about 22.4V, not 24V. It still works perfectly with my 12V battery and 40A 12V/24V MPPT setup (Vmp lands in a good range), but it’s something to confirm if your controller or wiring expects a higher-voltage panel or if you’re planning series strings for a 24V nominal system. Overall and as of now I’m happy with how this panel has improved my yard lighting reliability and output in a space-friendly package. The bifacial capability and compact high-efficiency design make it a smart step up from the old 100W unit for a typical home off-grid lighting project. That said, because this compact bifacial N-Type model is still relatively new, I don’t have long-term data on degradation or durability after several years of full outdoor exposure (UV, temperature swings, occasional heavy rain or wind). The manufacturer warranty is reassuring, but real-world longevity in a yard environment is still an unknown I’ll be watching over time. For now, it’s performing well and was a worthwhile upgrade.

Great 200w Solar panel. Very light weight, but seems durable. Rather than installing 2 100w panels, this is lighter and smaller in size than 2 100w; and doesn't require a Y connection, which loses power. Haven't guaged the output yet, but seems to work well with my Hqst MPPT controller. Charges my Eco-worthy 280ah LifePo4 up very quickly. Oh, added bonus, the black looks very cool on the roof. Now, for the Negative, packaging was extremely poor. I am surprised it made it in one piece. only 2 edges had protective plastic pieces, only a thin piece of padding between the glass and the box. I give all the credit of it arriving in 1 piece to the UPS people!! Not much use for the Bi-facial panel as it sits on my camper roof and might only get a bit of extra.

So far so great! For the price you will not do better. These are double sided (in short on the back side they capture reflected light and boost the overall output. I am getting well over 100 watt on these 100 watt panels). I am not sure how long they can maintain such a low price, however, one panel is a great price and two panels bought together is over the top amazing. Super simple standard connectors and if you need straight wire connections the wire quality is great for stripping and utilizing (this most likely voids warranty, with that I can see no reason why you would need to use the warranty as the panels are solid and well built. As for the double sided feature, the concept calls for the panels to be mounted off the surface so that reflected sun light can hit the underside. So if your brackets are up allowing light to get underneath these are for you. You do need a controller, pick a good one. PWM controllers are not as efficient as MPPT. You pay more for MPPT and it is well worth it (look for deals). In my specific DIY application I am doing a 360 degree rotational rig so that the panels are always facing the sun. For seasonal adjustments I will set the pitch (or seasonal angle manually 4 times per year, i.e. Summer Winter solstice and spring and fall equinox). ~20 degrees to about ~40 degrees towards equator). I am using a slow high torque motor and a timer (motor speed .6 RPM the timer is on 4.17 seconds every hour). A slip ring keeps the power line from twisting. Fun little project.... Be well!

Works great. I purchased my second one and together they are giving me over 10 amps of power. Bifacial is working great.

I ordered one of these panels initially, so this is my review for the first panel. It was easy to install, it is lightweight. It shipped with USPS so this one of the two panels actually came with a tiny bit of damage on one of the corners but it hasn't seemingly caused any issues so far. So far, it seems like these fit my needs just fine. Using this panel with a PWM controller. The panel is pulling very close to the rated 100w under mid-day sun (roughly 88-92w). Has a drop-off when in shade, but even in shade it pulls a decent percentage of it's rated 100w (about 67-72w). The only gripe I have is the slightly bent frame on the edge of the panel which is almost guaranteed to have been caused by shipping with USPS. EDIT: I have reviewed the second panel and it has no damage at all this time, is pulling the same as the other panel. Very impressed. But having used them for a few weeks now, I can say, I really dislike the shape of these panels, they're too fat on the sides and short long ways, which makes them a real challenge to mount on top of my suburban camper conversion. Renogy's panels are longer long-ways and skinnier on the sides, which I think I might have to swap these out for later, of only to maximize on space and mountability. Still, these panels ROCK and the price is undefeatable.

Worked as expected for a small battery power station. My 1st experience with a solar panel. It is a rabbit hole that once you go down the money you spend is endless.

Entregado el día correcto,espero que vaya bien, pues ya he colocado otra como está y va perfectamente, así que e😋Ya la he probado y funciona perfectamente de momento muy contento con la placa.

C'est le dixième module que je commande. Rien à redire, livraison sans problème en 48H, bien emballé. Il est donné pour 100W. C'est la théorie, face au soleil (1H avant et 1H après ça décroit) sans nuage, atmosphère claire d'été sec. Face au soleil ça veut dire perpendiculaire, quelle que soit la saison et l'heure. A plat sur le toit d'un camping car l'hiver, ça sort 10 watts. On y peut rien, c'est normal. Donc ne pas réver. J'ai 12 panneaux, pour ma pompe de piscine, ça va l'été de 11H du mat à 15 Heures. Après c'est 1/4 de temps grâce aux batteries. Ce panneau seul ne suffit pas. Achetez en plusieurs. Un micro-ondes prend 750 watts. Donc tenant compte des pertes, il doit charger la batterie 2 heures pour cuire des patates pendant 10 minutes. Mais c'est un panneau au top pour la technologie 2018.

We needed to replace a panel on our narrowboat and this product fits perfectly and works very well alongside the existing panel. The order was delivered next day and I was impressed with HQST service.

Grazie Amazon per la velocità di spedizione e pacco integro in tutte le sue parti. La recensione è ottima su questo pannello e lo consiglio a coloro che vorranno acquistarlo. Appena montato sul Camper ha cominciato a lavorare nel migliore dei modi. Soddisfatto in pieno.

Leider handelt es sich nicht um ein Panel wie auf dem Foto zu sehen, sondern es ist ein Panel auf einer Plastikscheibe und es ist somit flexibel