Features:

  • Anti-reflective, high transparency, low iron-tempered glass with enhanced stiffness and impact resistance, Withstand high winds (2400 Pa) and snow loads (5400 Pa). IP65 rated junction box provides complete protection against environmental particles and low pressure water jets.
  • Pre-drilled holes on the back of the panel allow for fast mounting and securing. Compatible with different mounting systems such as Z-brackets, Pole Mounts, and Tilt Mounts.
  • High module conversion efficiency. Ideal output: 500Wh per day (depending on the availability of sunlight). Bypass diodes minimize power drop caused by shade and ensure excellent performance in low-light environments.
  • Advanced encapsulation material with multilayered sheet laminations to enhance cell performance and provide a long service life. Corrosion-resistant aluminum frame for extended outdoor use, allowing the panels to last for decades
  • 5 years material and workmanship warranty and 25 years power output warranty.
Good quality and value. Size is shorter than many other panels but still 100 watts.

Great quality and value. Build and designed to last. I am using this to charge my RV battery and it is working great. It is a little wider than most standard size panels but it is also shorter which means it may fit better for certain installations. Good fit an finish and all panel edges sealed well with sealer to prevent water intrusion. I also bought a couple of the HQST flexible panels as well and am also happy with them. For permanent outdoor installations the framed panels with glass protection will likely hold up better which is why I have both. I added a couple rubber feet on the edge that leans up against my RV to prevent scratching. The panel already had holes in the frame that I was able to use for this purpose.

geat value

I bought this panel for a single purpose - run my old 12V cooler on a desert trip in southern California. I did not buy a controller or a battery, simply plugged it directly into the cooler which needs 4-5 Amps at 12-14V. It kept our food nice and cold during the day and, as the temp went down into the 40s at night, the cooler coasted through the night and revved back up again as soon as the sun came up. Of course I had to move it several times a day to keep it in direct sun. In the morning I propped it up on the rear bumper, during the day on the roof and as the afternoon progressed I moved it to the hood. see picture I plan to someday upgrade from a tent to a teardrop trailer. Then I'll get a battery and controller and fabricate a permanent, swivel mount for this panel. Mind you, in the upper Midwest, it won't produce near the power it did in the southern desert. It produces 5-6 Amps in "full sunlight" which means no clouds, no trees, no buildings. Low angle sun in the north doesn't deliver near the illumination that high angle southern desert sun does. This is why solar doesn't pay back in Detroit, Chicago or Minneapolis. Not enough sun. It works great in the desert. I'll be trying it in Moab UT next year.

Great panels, affordable, perform as advertised.

This is an excellent product. I'm using 4 of these panels wired in series/parallel for 24 volts/400 watts. In full sunlight, I've seen my 4 panels reach ~395 watts. This is amazing efficiency for for such an affordable panel. I've tested each panel with a multimeter and have my panel array hooked to a digital volt meter. I can say that the panels perform to their advertised specifications. One of the panels arrived damaged from shipping, customer service was fast and they sent me a replacement panel the day after I contacted them. All they required was a picture of the damaged panel. Also, HQST sends you a little pamphlet with these panels, offering you a free 2W/6V solar panel, in return for you leaving a review. While this is the reason I am writing this review (I usually don't bother leaving reviews for anything), it in no way influenced my review. These panels are well constructed and very efficient, I don't think you can beat them for the price.

Updated Review - Great panels for starter solar power system.

Adding to this review as I had since purchased another of these panels and had also replaced the Mohoo 20 amp with an HQST 30 amp MPPT controller. (The Mohoo is a great little piece of gear and IMO economically the best choice for single panel, smaller systems. I am saving it as a spare and for another project.) The HQST 30 amp MPPT is a truly advanced piece of equipment that is well suited for all aspects of battery care under changing conditions. My learning curve has been steep but in summary the two panels hooked in series are worth more than the sum of their parts as a 24 volt (upwards of 40-42 volts on the output side) feed into an MPPT controller and from there to a 75 amp hour 12 volt Great Start Marine deep cycle. It has been nearly the equivalent of adding a third panel. Since I will add two more of these panels at some point in the future, these efficiency gains will grow with them. In the Mono- VS Poly debate. I don't have any mono's just yet but the these polycrystalline panels perform surprisingly well even when the light level is low. On bright cloudy days, combined with the MPPT controller, the two of them can produce around 2 amps at 35-40 volts and that translates into a good charge for the battery even on a cloudy day. (Scattered light from clouds also increases their output while they are shaded which helps.) They produce even in the rain albeit at around half an amp or so. The differences between the two panel types are really not that significant in my opinion, not nearly as much as in the choice of going MPPT and/or running a higher voltage. The cells are 18% efficient in optimal conditions and on cooler sunny days with the wind blowing, they really amp it up. I'm looking forward to seeing how they do in winter. The shorter days should be offset by cooler temps and leafless tree shade. Alas, high heat does seem to take the output down measurably (roughly 10% or so) but even in those conditions, the power yield is still ample. Mono is said to be more tolerant of high heat in maintaining yield. ---- The big weakness and my limiting factor, is the battery. I need bigger a one and more of them. These two panels and the controller are getting the battery to float voltage as early as 2-3 p.m. Flooded lead acid deep cycles (Trojans or something with thick plates) would probably be best as the water levels (and specific gravity) can be checked and maintained and they are less expensive for the amp hour. I've read that over/under/mis-charging and dehydrating an AGM or other fancy sealed battery is pretty much irrecoverable for it. AGM is really efficient and capable of a high number of cycles but FLA seems more forgiving for the amateur. I've moved the battery outside for safety reasons and it seems to work well there. Will update again at a later date. 08/26/2016 Very happy with this solar panel. I settled on this one because of the design, other good reviews, price and also because the processes of manufacture for modern polycrystalline solar cells use less raw material and energy than other types of cell manufacture and am making more decisions in lifestyle which include environmental impact. It also seemed like a good match with the Mohoo 20 amp controller which I ordered and am so far happy with. It came on the day specified and was pristine, even beautiful upon opening. No damage or unpleasant surprises. Installed it on a couple deck boards cut to match the top of a southwest facing window awning and its dimensions and weight are a good fit for it. It even looks nice, like an accessory to the awning. I tend to favor function over appearance but it was not difficult to make a decent looking installation of this. The "Z" mounting brackets are a must. They make attachment to the supporting structure so much easier and more secure. The aluminum seems very high quality and is light to handle. I was able to hold the panel with one hand while getting it in place on the awning. The high grade end cable connectors were a good decision too. I soldered the metal pins onto the cables and had to work with them to get them fully inserted for a good connection but once connection was established they have carried full current. So far very happy with the panel's performance and plan on buying at least two more of these to mount on an adjacent and larger awning. At dawn it produces between 0.3 and 0.6 amps as it is in tree shade for the first hours of the day. Amperage builds as the sun rises and have seen it drive 5.5 amps out of the controller in sunny mostly clear conditions. Max closed circuit amperage is 5.62 so either true performance is better than that and/or power loss in the cables and controller is less than expected. When clear and out of the shade it produces 5 amps plus until about 6 pm (july) so I can get about 6 hours of full power out of it. It has bypass diodes that help balance production when some of the panel is shaded. It sustains between 1 and 2 amps in partial shadow or bright clouds. (An MPPT controller would probably glean 10-15% more out of it in those conditions.) Have it charging a large marine deep cycle battery and have about 20 feet of 10 gauge low voltage lighting cable between the controller and the panel and 12 gauge solid wire to the battery and from the load circuit to the 12 volt system outlets. As part of a starter system it is affordable and simple enough to give the residential solar engineer worthwhile experience by which to competently plan, select components for, and implement more advanced and larger systems. I have a separate set of 12 volt and generator wires and conduit run through parts of the house for emergency lighting, fans etc. that is now fed from the load circuit and is running some 30-50 watt equivalent luminosity LED lights, the DSL Modem, and cell phone chargers. Will put in a pure sine wave inverter later and want to replace the marine battery with a 100 amp hour AGM deep cycle. Plan on hooking up my 12 volt Coleman cooler and a couple 12 volt fans in my basement office when I get more panels hooked up. It could be taken down and with a portable mounting used remotely in the field, on an RV or boat if desired. Pamphlet states that it is robust and resistant to impact damage and low pressure water jets but I am wanting to fashion some kind of easily fastened (hail) storm cover for it. In summary it works well and fully meets its stated performance criteria and has every appearance of being a long lasting device of high quality. It It fits in places not practical for the 250 watt grid-tie panels yet produces worthwhile wattage.

Superior Quality 100 Watt Solar Panel

I am a solar submersible well pump dealer/installer and just last week I ordered the 100 Watt HQST solar panel. When I received it i really felt and seen the top quality and make up of the panel. I was surprised because the panel was at 112 dollars and I expected it to be cheaply made. Not this one, this panel I will use mounted on a tripod to charge my RV batteries while out in the field. I will no longer need to trickle charge my battery using AC, I plan on leaving this panel outside all year round to keep my batteries fresh. I have no doubt that this solar panel will weather the elements nicely and without any problems. Get it now, just don't buy them all because I will be ordering some more soon. HQST 100 Watt 12 Volt Polycrystalline Solar Panel

Can't beat HQST panels for power output and price!!!.

3rd HQST 100 Watt 12 volt Polycrystalline solar I've purchased. Very well made! All 3 have been producing more power that the rated output. I'll be purchasing more to expand my system. Great Solar panels, Great price!

So far cann't beat the quality

I bought this HQST panel because I already own a 50 watt HQST panel. I used to also own a 25 watt HQST panel but in a thunderstorm in Utah it was blown off the roof and destroyed. I have owned other units(from other manufacturers) also through the years, but all of the others have for some reason or other just quit working. This 50 Watt panel is going on 6 years old and has been beat, banged and otherwise abused through the years, because I very seldom stay in RV Parks. Once it was even inspected by a bear, It must have passed, because he didn't destroy it. LOL I bought this one so to cut down the charging time on my batteries, I was very careful to make sure the voltage and current were almost exact between the 2 panels. There was only .2 difference in the charging current between the 2 panels. In hooking them together I found that was also the drop that I got. 50watt 17.4 volts, 100watt 17.6 volts ( together 17.4volts) units are hooked up in parallel. I hope that this panel lasts as long as my older one has.

Great quality panels for our home DIY solar setup!

We purchased a couple of these solar panels and compared them to the Windy Nation 100 Watt 12 Volt Polycrystalline Solar Panels and found that at least for the panels that we received, they produced a similar number of watts with the same sun exposure. The HQST and the Windy Nation Panels are all very good quality and well built. Probably the only difference is that the Windy Nation panels are more expensive and the MC4 cables are a little longer. We eventually purchased 18 more HQST panels and we hooked up 20 of these panels to create a 24V 2kW system on top of our garage. The 20 panels generate post-inverter about 11kWh per day during sunny days in Northern California that we can use or feed back into the grid. We never measured how much inverter loss there is though. Most of the panels face south, but we also face some of the panels west because electricity prices are much higher for us in the late afternoon. I'm happy with their performance, as it has reduced our electricity bill by about $100 per month, so the system should pay for itself in a couple of years! We would install more, but we have run out of easily accessible roof space.

job site power on work trailer

I normally don't write reviews but I am very pleased with the panels I got here. I purchased the first panel to keep a trailer battery and a few other things charged but I soon found more things to connect and added two more panels as needed. I'm now running my work trailer totally off solar and have three old batteries being charged to help when needed. I have a freezer and microwave, drill press and other tools plus music and the lights and no longer need to bother with finding a place to park near a power source or use a generator when I get to a job. very pleased.

and arrived in excellent condition. I have them installed

This was a followup order of 2 HQST 100 watt solar panels, after having received and tested one in March. They were promptly shipped, and arrived in excellent condition. I have them installed, on my roof. Typically, with an inexpensive MPPT Solar Charge Controller, I see around 60 watts from just one panel in the mid- afternoon sun, but it did test even higher just before noon. See the attached photos.

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