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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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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 02, 2026 11:18 PM
251 Posts
Joined Feb 2018
PoohbiwonMay 02, 2026 11:18 PM
251 Posts
Quote from vixenreindeer :
Ordered 9 with the 30$ off coupon then made a second order with 8$ off of 2 Panels... These are bi-facial as long as you have some sun on both sides you will likely get the 100 watts don't let the babies put you off buying them I got mine in 5 days by fed ex last time... And as for putting them in series yes you need them all exposed to light but my inverter requires a higher voltage to start there fore I need 10 or so in parallel(10X19.5=195V) to get them working earlier in the day and later as the minimum voltage(120v to 450v MPPT operating range) drops off later if you have a lot in series!
These are Model Number: L02M100TM-1 Panels and are going for 69.99$ plus shipping on the eco worthy main site..

What's the $30 off coupon?
Pro
May 03, 2026 01:49 AM
480 Posts
Joined Oct 2004
Robika
Pro
May 03, 2026 01:49 AM
480 Posts
Quote from Poohbiwon :
What's the $30 off coupon?
Not sure what the $30 one is, but using CDUS35 gets you $35 off of $249+
May 03, 2026 02:14 AM
1,956 Posts
Joined Jul 2018
QuaziArtsMay 03, 2026 02:14 AM
1,956 Posts
Are these suitable for camping with a Bluetti 700W power station? Are they fragile and would traveling be an issue compared to folding panels?
May 03, 2026 02:40 AM
3,270 Posts
Joined Dec 2009
RyanMPLSMay 03, 2026 02:40 AM
3,270 Posts
Quote from danjayh :
What's the cheapest possible grid-tie microinverter with anti-islanding to go with these for a little balcony solar? Ideally something that can have its output set programmatically, so that I can use Home Assistant and an energy meter to keep myself from exporting
Cheapest possible is unsafe and illegal or at least against utility rules. Tapo P110M smart plugs have some great features for power monitor, scheduling and can set thresholds to power down if wattage exceeds XX. I'd get a legit micro inverter that can be used in a future expansion. Can't put some Temu thing into a real system later.
1
May 03, 2026 03:23 AM
49 Posts
Joined Mar 2017
vixenreindeerMay 03, 2026 03:23 AM
49 Posts
Quote from Poohbiwon :

What's the $30 off coupon?
I should of written it down it showed up on the aliexpress coupon page but once you use it ... it disappears..
I looked up my order receipt it showed the 30 off but not the code but 35 looks better and I just make another order to take advantage if other lower amount coupons show up..
1
May 03, 2026 03:29 AM
61 Posts
Joined Dec 2024
FairPassenger4373May 03, 2026 03:29 AM
61 Posts
Quote from QuaziArts :
Are these suitable for camping with a Bluetti 700W power station? Are they fragile and would traveling be an issue compared to folding panels?
For camping, I would get portable panels. I have both and I can't imagine lugging a big panel around while camping. I don't think you realize how ungainly these are.
1
May 03, 2026 03:35 AM
61 Posts
Joined Dec 2024
FairPassenger4373May 03, 2026 03:35 AM
61 Posts
Quote from talonts :
If they're 75% of the size, you can fit 4 in the space of 3 other "100W", so the space taken up isn't really an issue, is it? At that point, it's just all the wiring that matters.
Only if you are just judging it by square inches. You also have to take account form factor. How are you Tetris skills?

It's more than wiring that's an issue. Although that is too. 4 of these panels will cost more than 3 full size 100W panels. They also won't generate as much power. In my experience 3 full size 100W panels generate more power than 4 of these panels do. So you are paying more for less.

Back to wiring. The cost for that can add up. If you run them parallel, you'll need a 4 combiner instead of 3. That will cost more. If you care about safety, you'll need another fuse. If you use a PV fuse, that will cost a decent amount more. Even if you use a cheap car fuse, a holder for that won't be free. So that makes the value proposition even worse.
1

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May 03, 2026 03:57 AM
49 Posts
Joined Mar 2017
vixenreindeerMay 03, 2026 03:57 AM
49 Posts
Quote from FairPassenger4373 :

Only if you are just judging it by square inches. You also have to take account form factor. How are you Tetris skills?

It's more than wiring that's an issue. Although that is too. 4 of these panels will cost more than 3 full size 100W panels. They also won't generate as much power. In my experience 3 full size 100W panels generate more power than 4 of these panels do. So you are paying more for less.

Back to wiring. The cost for that can add up. If you run them parallel, you'll need a 4 combiner instead of 3. That will cost more. If you care about safety, you'll need another fuse. If you use a PV fuse, that will cost a decent amount more. Even if you use a cheap car fuse, a holder for that won't be free. So that makes the value proposition even worse.
We are talking 30 dollars a piece I think I'll try these bi-facial and see if they really give out less than 75% ... I have 11 on order for 337$ that's tax and free delivery.That's 1100 watts or in your case 825 watts for 337 tax and shipping included.. I shall see ,,,
1
May 03, 2026 05:04 AM
529 Posts
Joined Oct 2015
plai7778May 03, 2026 05:04 AM
529 Posts
the comments here are crazy lol
May 03, 2026 07:32 AM
61 Posts
Joined Dec 2024
FairPassenger4373May 03, 2026 07:32 AM
61 Posts
Quote from vixenreindeer :
We are talking 30 dollars a piece I think I'll try these bi-facial and see if they really give out less than 75% ... I have 11 on order for 337$ that's tax and free delivery.That's 1100 watts or in your case 825 watts for 337 tax and shipping included.. I shall see ,,,
$30 is not an exceptionally low price. I already posted a link to another panel at the same price point as these. Even Renogy which has been used as an example of an expensive panel is currently selling a 100 watt panel for $36.

That's a lot of panels for something that you haven't gotten before. My hat's off to you. Since I tend to buy a couple to check out before buying more. But with all those panels you can be like this guy. From his 15 panels he's getting 1060 watts.

https://www.youtube.com/watch?v=2OOm9RU6bP0
May 03, 2026 04:37 PM
256 Posts
Joined Jan 2015
ASFMonMay 03, 2026 04:37 PM
256 Posts
I am currently dealing with EcoWorthy through AliExpress, and this has been, without question, the worst customer service experience I have had in over 50 years. What should have been a simple return has turned into an ongoing, frustrating ordeal. The batteries I purchased do not fit, yet after more than a week, I am still being given the runaround with no resolution in sight. The level of inefficiency, lack of accountability, and overall disregard for the customer is frankly unacceptable. Based on this experience, I strongly caution anyone considering a purchase to think twice. I would not consider buying from this seller again under any circumstances.
2
May 03, 2026 05:45 PM
162 Posts
Joined Jan 2014
danrhodesMay 03, 2026 05:45 PM
162 Posts
Quote from ASFMon :
I am currently dealing with EcoWorthy through AliExpress, and this has been, without question, the worst customer service experience I have had in over 50 years. What should have been a simple return has turned into an ongoing, frustrating ordeal. The batteries I purchased do not fit, yet after more than a week, I am still being given the runaround with no resolution in sight. The level of inefficiency, lack of accountability, and overall disregard for the customer is frankly unacceptable. Based on this experience, I strongly caution anyone considering a purchase to think twice. I would not consider buying from this seller again under any circumstances.
Escalate to aliexpress. They always side in my favor?
May 03, 2026 06:49 PM
2 Posts
Joined Nov 2025
chak5801May 03, 2026 06:49 PM
2 Posts
Can we directly connect it to our house grid or need a electrician for this connection , any insights or point me to a link I can read in details , would be very helpful
May 03, 2026 07:42 PM
41 Posts
Joined Mar 2014
CarlC5401May 03, 2026 07:42 PM
41 Posts
Wow!
I remember when $100 for 100watt panel was a good deal. Awesome!

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May 03, 2026 07:44 PM
881 Posts
Joined May 2017
CheapMemeKingMay 03, 2026 07:44 PM
881 Posts
Where do you "store" the energy when you buy these panels?

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