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frontpageiconian | Staff posted May 01, 2026 07:39 AM
frontpageiconian | Staff posted May 01, 2026 07:39 AM

100W ECO-WORTHY 12V or 18V Monocrystalline Solar Panel

+ Free S&H

$31

$50

38% off
AliExpress
130 Comments 35,993 Views
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Deal Details
Update: This very popular deal is still available.

ECOWORTHY-US Store via Aliexpress has 100W ECO-WORTHY 12V or 18V Monocrystalline Solar Panel on sale for $33.03 - $2 w/ promo code USDEAL02 at checkout = $31.03. Shipping is free.
  • Note: You may get 2 for $58.06 ($29.03 each) when you apply promo code USDEAL8 at checkout.
Thanks to Deal Editor iconian for sharing this deal.

Note: Price may fluctuate slightly with currency exchange rates. You must be signed into your AliExpress account and have your address added to add items to your cart and place an order. You may have to manually type in the promo code to apply it at checkout. This item ships from a USA warehouse. For expedited customer service, please email [email protected].

Product Details:
  • Highly weather-resistant panels can last for 25 years supported by an IP65 junction box, impact-resistant tempered glass, and corrosion-resistant aluminum frame. Delivered under the escort of corner protectors and pearl cotton, designed to protect your goods.
  • Size: 35.24 x 23.03 x 1.4inches, weight 14.55 Lbs. Diodes are pre-installed in junction box, with a pair of pre-attached 2.95ft Cable.
  • Bifacial solar panels are designed with a transparent back of 12BB solar cells, the back panel uses composite materials, the light transmittance up to 91.5%, the conversion rate of 23%, the power generation is 858Wh per day under ideal conditions, compared to traditional solar panels, the power can up to 33%.
  • PERC technology: passivation film is used to enhance the reflection of sunlight inside the silicon base, improving the efficiency of the cells to 23%.Compared with the traditional 12BB mono panel that is only beautiful but has no actual improvement, this one achieve a win-win situation in terms of aesthetics and efficacy.

Editor's Notes

Written by RevOne | Staff
  • About this Deal:
    • Our research indicates that this deal is $34.96 less (53% savings) than the next best available price from a reputable merchant with prices starting at $65.99 at the time of this posting.
  • About this Product:
    • Rated 4.9 out of 5 stars based on over 20 customer reviews.
  • Additional Notes:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by iconian | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This very popular deal is still available.

ECOWORTHY-US Store via Aliexpress has 100W ECO-WORTHY 12V or 18V Monocrystalline Solar Panel on sale for $33.03 - $2 w/ promo code USDEAL02 at checkout = $31.03. Shipping is free.
  • Note: You may get 2 for $58.06 ($29.03 each) when you apply promo code USDEAL8 at checkout.
Thanks to Deal Editor iconian for sharing this deal.

Note: Price may fluctuate slightly with currency exchange rates. You must be signed into your AliExpress account and have your address added to add items to your cart and place an order. You may have to manually type in the promo code to apply it at checkout. This item ships from a USA warehouse. For expedited customer service, please email [email protected].

Product Details:
  • Highly weather-resistant panels can last for 25 years supported by an IP65 junction box, impact-resistant tempered glass, and corrosion-resistant aluminum frame. Delivered under the escort of corner protectors and pearl cotton, designed to protect your goods.
  • Size: 35.24 x 23.03 x 1.4inches, weight 14.55 Lbs. Diodes are pre-installed in junction box, with a pair of pre-attached 2.95ft Cable.
  • Bifacial solar panels are designed with a transparent back of 12BB solar cells, the back panel uses composite materials, the light transmittance up to 91.5%, the conversion rate of 23%, the power generation is 858Wh per day under ideal conditions, compared to traditional solar panels, the power can up to 33%.
  • PERC technology: passivation film is used to enhance the reflection of sunlight inside the silicon base, improving the efficiency of the cells to 23%.Compared with the traditional 12BB mono panel that is only beautiful but has no actual improvement, this one achieve a win-win situation in terms of aesthetics and efficacy.

Editor's Notes

Written by RevOne | Staff
  • About this Deal:
    • Our research indicates that this deal is $34.96 less (53% savings) than the next best available price from a reputable merchant with prices starting at $65.99 at the time of this posting.
  • About this Product:
    • Rated 4.9 out of 5 stars based on over 20 customer reviews.
  • Additional Notes:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by iconian | Staff

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Top Comments

Robika
480 Posts
155 Reputation
I have 2 of these and 4 of the monofacial. They all put out right around what they're supposed to. Bifacial, of course, does a bit better. This is a great price, even better than the deal I posted a few weeks ago.

I'm getting 2 more to complete 2 parallel strings of 48V.

Better deal if you buy 2 and use code CDUS08 for $8 off.

And yes, I trust AliExpress, like I said I have 6 panels from them already and they all work perfectly fine. Only mentioning for those that are on the fence about buying from AE, cuz I know there are a lot of AE haters out there. And no, I'm not a shill.
FairPassenger4373
61 Posts
10 Reputation
Serial is not ideal if you have shading. Parallel works better. If you have 4 panels in a series and 1 panel is partially shaded, the entire string is held back by that 1 panel. Since at the combined voltage, it'll only output the number of amps that shaded panel can put out. Which isn't much. You can increase output by fully covering that shaded panel so that it drops out and the charge controller adjusts to the lower voltage. With parallel that doesn't happen. The other 3 panels will still be going full bore. So I parallel when I can. Serial only if I have to.
jdfetterman
834 Posts
311 Reputation
The 100w panels keep getting cheaper and cheaper. I'd like to see larger panels come down like this.

131 Comments

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May 04, 2026 02:28 AM
180 Posts
Joined Mar 2009
SgtWalleyeMay 04, 2026 02:28 AM
180 Posts
Bought 2 of these last time...getting 2 more. I'll set them up with 2 in parallel and 2 in series for a 24v system. I'm going to put mylar sheets behind them to see if that helps as well.
1
May 04, 2026 02:32 AM
61 Posts
Joined Dec 2024
FairPassenger4373May 04, 2026 02:32 AM
61 Posts
Quote from vixenreindeer :
Oh I am sorry no one should ever just buy one panel and verify for themselves
That's a good idea. That's what I said to do. But you just said that you already have these panels. So why did you say earlier you ordered some and "I shall see"? If you already have some, you should have already seen. You aren't making any sense.
May 04, 2026 02:34 AM
205 Posts
Joined Mar 2012
nsls2061May 04, 2026 02:34 AM
205 Posts
Thanks OP!
May 04, 2026 02:40 AM
237 Posts
Joined Aug 2010
mashalaTHEballaMay 04, 2026 02:40 AM
237 Posts
Quote from TealActivity1814 :
They are 22.7 voc panels, with normal operating voltage being around 18-20v. There are no 12v or 18v of these panels. 12v usually just means it goes with like a 12v battery and a 12v charge controller.
forgive my ignorance, could these be used to charge/maintain a car battery? if so, would i have to buy anything additionally to make that work? thanks in advance!
May 04, 2026 02:50 AM
61 Posts
Joined Dec 2024
FairPassenger4373May 04, 2026 02:50 AM
61 Posts
Quote from mashalaTHEballa :
forgive my ignorance, could these be used to charge/maintain a car battery? if so, would i have to buy anything additionally to make that work? thanks in advance!
You need a charge controller. A device that will take the voltage of this panel, 18V, and convert it into what you car battery needs which is about 13.5V. It will also stop charging when your battery is full. They are cheap, around $10 for a cheap one.
1
May 04, 2026 03:15 AM
243 Posts
Joined Jul 2013
j0lla127May 04, 2026 03:15 AM
243 Posts
Not a bad deal
May 04, 2026 03:17 AM
49 Posts
Joined Mar 2017
vixenreindeerMay 04, 2026 03:17 AM
49 Posts
Quote from FairPassenger4373 :

That's a good idea. That's what I said to do. But you just said that you already have these panels. So why did you say earlier you ordered some and "I shall see"? If you already have some, you should have already seen. You aren't making any sense.
I bought what i thought was the same ones when they first came out bifacial 18v from ecoworthy these have the same specs but I am not sure they are the same so I believe they are the but I never fully trust any company to keep them the same and when I bought them they were a lot more expensive..
But for 30 bucks If they have not altered jiggled with the tech then this is fantastic because the ones I have work great ..
So I am buying again but with the caveat that if they match then I am happy but if eco has changed them and they have cut corners then I will report back but man for 30 bucks if they are even close its a steal and they match dimentions and size of my old ones so easy to fit/replace and expand..

I orginally bought from eco worthy from Them at retail price not from aliexpress so I paid a lot and to me this is nuts .. I had later on heard of aliexpress and put them down there with temu as scam sites but things have changed and for some reason they can ship these panels fast from usa and they are so darn cheap I can't even get my head around being upset if they just give me 80-90% so I am just trying to say for this price less then a MacDonald's meal I can try one and throw it on a truck if not happy but they match the specs almost exactly of what I have ..
My shed has space for these last 11 i will serial them or separate them if they dont match well enough no trees just sky and clouds ...
but I am so geeked that they are 30 bucks that I cant for the life of me argued over which brand to buy as long as they are not flexible ones since those have not worked out well for me.. but for all I have been burned by others advise(on you tube and forums) so I suggested get one and try them for these prices may not be here to stay with all the world crap going on..
1

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May 04, 2026 04:54 AM
272 Posts
Joined Nov 2025
TenseScent5337May 04, 2026 04:54 AM
272 Posts
Quote from jdfetterman :
The 100w panels keep getting cheaper and cheaper. I'd like to see larger panels come down like this.
I hope the plug in solar panel kits get this cheap. Best place for a newbie to start (it's on my YT feed now that it's legal now in most states?)
May 04, 2026 05:07 AM
82 Posts
Joined Sep 2008
wexMay 04, 2026 05:07 AM
82 Posts
Thor RV - Any thoughts?
May 04, 2026 12:54 PM
104 Posts
Joined Jan 2014
slickerdeal911May 04, 2026 12:54 PM
104 Posts
Can I buy 4 of these and put on top of my Pergola? Use to charge my Oupes power station when needed? Or it has to plug in all the time?
May 04, 2026 02:46 PM
49 Posts
Joined Mar 2017
vixenreindeerMay 04, 2026 02:46 PM
49 Posts
4 times the open circuit voltage at worse is about 90 volts as long as that Oupes can take that high a voltage I don't see why you can't just plug it in as needed as long as you have the appropriate adapter ... Thats assuming you put them in serial configuration.. If you parallel them in sets of two your voltage will be halved but then your max current will double.. You'll need to look at the Oupes current and voltage limits to be sure..
1
May 04, 2026 02:46 PM
88 Posts
Joined Mar 2020
PurpleScent2237May 04, 2026 02:46 PM
88 Posts
Solar Panel getting cheaper and cheaper
May 04, 2026 06:55 PM
61 Posts
Joined Dec 2024
FairPassenger4373May 04, 2026 06:55 PM
61 Posts
Quote from slickerdeal911 :
Can I buy 4 of these and put on top of my Pergola?
Technically yes. Legally is another question. Generally if you put these on a structure, you'll need to get a permit and thus you'll have to comply with NEC. So check the codes in your area.
1
May 04, 2026 08:01 PM
1,117 Posts
Joined Nov 2006
x3shiftMay 04, 2026 08:01 PM
1,117 Posts
Is there a way to use this solar panel to allow a standard plug to plug into? I want to plug in string lights to it
1

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Pro
May 04, 2026 09:22 PM
17 Posts
Joined Oct 2025
GreenTeam934
Pro
May 04, 2026 09:22 PM
17 Posts
Quote from itsme13 :
My experience with eco-worty panel is other way around, they don't come close to there rated wattage.
They are close to 76% of rated power, have gone though a year with them.
Are you new to solar panels? The nameplate rating is what you'll get at the highest possible altitude in the tropics, with the sun directly overheard, the panel perfectly aligned with the sun, and not a speck of dust in the atmosphere. This is true of every cheap brand.
Last edited by GreenTeam934 May 4, 2026 at 02:33 PM.

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