HQST2PCS 9BB 100W Solar Panel 12V 200 Watt Monocrystalline Solar Panels High-Efficiency Module for RVs Motorhomes Cabins Marine Boat Off-Grid

I own a few of the 5 bus bar versions of this panel and the physical dimensions are one of my favorite. So, when we got our EcoFlow Delta (1000) I knew where to look for panels to build the array that would power it. I'm using 3x 100W panels on series, so voltage is around 60-62V at just over 5Amps current (EcoFlow's input is 65V, 10Amps MAX) and have them mounted on the front porch's roof, at only a slight incline. During sunny days I have (at times) seen OVER 300W and attribute that to the MPPT charge controller in the Delta. They begin producing power as early as 7am, and will continue to produce (some) power until 730 or 8pm. I'm definitely happy with my purchase, and will not hesitate to purchase more when the time comes.

I was constrained on dimensions for an RV rooftop install. HQST, Newpowa, and Werchtay were the brands I tested. I had existing Renogy flexible panels 2-3 years old to compare. Results on a near optimal sun day with proper aiming with a decent MPPT controller:HQST: 90wNewpowa: 80wWerchtay: 70w[control] Renogy 100w flexible (2-3 yrs old): 75w+/- 1-2 watts. Needless to say, I was only impressed with the HQST.

HQST 9BB Cell 100W Solar Pane (Monocrystalline) - Used to maintain the LiFePO4 battery in a River-2 battery box. Horizontal under cloudless sun delivered measured 85 watts at the end of a long cable. When a cloud came along, still delivered about 25 watts. Were it lighter, it would be more easy to change its angle with the sun during the day. Came in an excellent box - open with care and save the end spacers. Expect to use the panel only only once a year as part of an emergency prep activity and the shipping box is ideal for storage.For long term use, the glass covering should provide longer life and is probably why it seems heavy.

I have 15 of these in 3 strings of 5. They consistently produce 1750w rather than the rated 1500w. I love these and they are much easier to install by one person.

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.

The inexpensive HQST 12v 100w Solar Panels outperformed the Renogy 12v 100w panels on Sunny days, but the Renogy produced more power on cloudy days, that is, in low light conditions: see the stats below. HQST (4 panels) Renogy (6 panels) both use Renogy Wnd 30Total Watts/day 1532 / 4 = 383w/p 1810 / 6 = 301w/p Sun May 2Watts per Panael W/p 517 / 4 = 130w/p 863 / 6 = 144w/p Mon May 3 313 / 4 = 78w/p 414/ 6 = 69w/p tues may 4 300 / 4 = 75w/p 700 / 6 = 117w/p Wed may 5 1368 / 4 = 342w/p 1850 /6 = 308w/p thur may 6fri may 7: 1760w/4p= 440w/p HqST 2067w/6p= 344w/p renogysat may 8: 1733w/4p= 433w/p hqst 2006w/6p= 334w/p renogysun may 9: same as satmon may 10: 1280w/4p= 320w/p hqst 1750w/6= 292w/p renogy The test conditions were not perfect.I placed two strings of panels next to each other (4 HQST, 6 Renogy)each controlled by a Renogy Wanderer 30amp pwm controller; panels in paralleli recorded the watts registered by the Wanderer Controller each day.I live 30 minutes south of Chicago and I'm lucky to get 60wats peak from a panel& a lot of trees around

This is second set of hqst 100 watt panels I have bought these are smaller than other ones I bought seems like good panel like my first set which are great

Great new size panel paired together like a suit case for easy transport geat value