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

Community Voting

Deal Score
+196
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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 12:40 AM
846 Posts
Joined Nov 2006
AcinaMay 02, 2026 12:40 AM
846 Posts

Our community has rated this post as helpful. If you agree, why not thank Acina

Quote from AlphaZero :
Wow... around black Friday I got the Renogy 400W Portable Solar Panel Blanket for $380. Some reviewers claimed they slightly exceeded in direct sunlight, but I never got a chance to test that case. I shouldv'e saved my money and got these instead. But to be fair, the Renogy is 16lb while one of these panels is 14.5lb, so there is that difference. I wonder about their durability though. 25 years would be great but I'd want to be sure before installing on a roof (unless you're a DIY knowing what you're doing). Anybody here have them for years?
Renogy panels will output close to or more than their rated wattage. Eco worthy will output 50-75% of their rated wattage. My Eco worthy panels get 68% while my Renogy panels get 95%. In this case, you get what you pay for.
Last edited by Acina May 1, 2026 at 05:43 PM.
2
May 02, 2026 01:23 AM
637 Posts
Joined Dec 2014
FloridaKevinMay 02, 2026 01:23 AM
637 Posts
Quote from Acina :
Renogy panels will output close to or more than their rated wattage. Eco worthy will output 50-75% of their rated wattage. My Eco worthy panels get 68% while my Renogy panels get 95%. In this case, you get what you pay for.
Just don't put that theory on paper and you will continue to feel good about yourself. The renogy panels cost at least double. So the 68% from ecoworthy price equivalent is about 47.5% with the same dollar amount of renogy.
May 02, 2026 01:29 AM
846 Posts
Joined Nov 2006
AcinaMay 02, 2026 01:29 AM
846 Posts
Quote from FloridaKevin :
Just don't put that theory on paper and you will continue to feel good about yourself. The renogy panels cost at least double. So the 68% from ecoworthy price equivalent is about 47.5% with the same dollar amount of renogy.
I'm willing to pay the double since the difference in wattage occurs every single sunny day. Over many years, the difference becomes significant.
1
May 02, 2026 01:36 AM
637 Posts
Joined Dec 2014
FloridaKevinMay 02, 2026 01:36 AM
637 Posts
Quote from Acina :
I'm willing to pay the double since the difference in wattage occurs every single sunny day. Over many years, the difference becomes significant.
I cant use crayons here, but If you spend $31 on a panel from EW two times, it will be $62. Let's just say theoretically the renogy is $62. If you are getting 68% from the EW, then that means you are getting 136w from the $62. If you are getting 95% from renogy, then you are getting 95w from the same $62. 136w>95w. I know renogy tends to be a very high quality product, but EW has a pretty good reputation also.
1
May 02, 2026 01:39 AM
77 Posts
Joined Nov 2019
DraniieMay 02, 2026 01:39 AM
77 Posts
Quote from Robika :
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.
let them keep hating and I'll keep saving
May 02, 2026 01:40 AM
846 Posts
Joined Nov 2006
AcinaMay 02, 2026 01:40 AM
846 Posts

Our community has rated this post as helpful. If you agree, why not thank Acina

Quote from FloridaKevin :
I cant use crayons here, but If you spend $31 on a panel from EW two times, it will be $62. Let's just say theoretically the renogy is $62. If you are getting 68% from the EW, then that means you are getting 136w from the $62. If you are getting 95% from renogy, then you are getting 95w from the same $62. 136w>95w. I know renogy tends to be a very high quality product, but EW has a pretty good reputation also.
Unfortunately, panels take up space in the real world. In reality, you want to buy the best panels for any given space.

Cheap low efficient panels are fine if you are just starting out into solar. But once you learn more, most people realize high efficiency is worth the extra initial cost.
Last edited by Acina May 1, 2026 at 06:46 PM.
1
1
May 02, 2026 04:14 AM
49 Posts
Joined Mar 2017
vixenreindeerMay 02, 2026 04:14 AM
49 Posts
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..
1

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May 02, 2026 04:30 AM
61 Posts
Joined Dec 2024
FairPassenger4373May 02, 2026 04:30 AM
61 Posts
Quote from FloridaKevin :
I cant use crayons here, but If you spend $31 on a panel from EW two times, it will be $62. Let's just say theoretically the renogy is $62. If you are getting 68% from the EW, then that means you are getting 136w from the $62. If you are getting 95% from renogy, then you are getting 95w from the same $62. 136w>95w. I know renogy tends to be a very high quality product, but EW has a pretty good reputation also.
But you don't have to pay that much for legit 100 watt solar panels. When I got these 100w Eco-Worthy panels, they cost about as much as my JJNs. Which are the same panel as the Renogy panels but with a different frame. On a meter, the JJNs work exactly as well as the Renogys. Which means they work better than these Eco-Worthies. I only got these because they were bifacial so I hoped they would have better yield over the course of a day. They don't. It's no mystery why they are like 75% the output of other 100 watt panels. It's because they are physically about 75% the size of 100 watt panels. Thus why they are really like 75 watt panels.

You can still get real 100 watt panels for the same cost as these. So if you do the math, you are paying to get less by getting these.

https://www.aliexpress.us/item/32...39581.html
May 02, 2026 04:33 AM
61 Posts
Joined Dec 2024
FairPassenger4373May 02, 2026 04:33 AM
61 Posts
Quote from Acina :
Unfortunately, panels take up space in the real world. In reality, you want to buy the best panels for any given space.

Cheap low efficient panels are fine if you are just starting out into solar. But once you learn more, most people realize high efficiency is worth the extra initial cost.
You are completely right. That's why I'm getting real 100 watt panels to replace these effectively 75 watt panels. It's a waste of real estate. Also as you pointed out, any savings these panels have will be paid back shortly by getting real 100 watt panels. But the thing is you can get other 100 watt panels for the same price as these.

https://www.aliexpress.us/item/32...39581.html
1
May 02, 2026 05:07 AM
57 Posts
Joined Feb 2016
redarmanMay 02, 2026 05:07 AM
57 Posts
Can I connect 2 of these side-by-side with the existing MC4 connectors to make a single 24V unit?
May 02, 2026 05:31 AM
49 Posts
Joined Mar 2017
vixenreindeerMay 02, 2026 05:31 AM
49 Posts
Quote from redarman :
Can I connect 2 of these side-by-side with the existing MC4 connectors to make a single 24V unit?
They actually have a voltage of 19.7 so in series would be about 40 Volts.. You may want to rethink your application depending on what voltage your device can handle..
But to tie them together in series for double the voltage you just connect positive of one panel to negative of the next those connectors just snap together (then the left over connectors are the new positive and negatives)..
1
May 02, 2026 06:01 AM
168 Posts
Joined Apr 2016
mmt44May 02, 2026 06:01 AM
168 Posts
Quote from Robika :
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.
Do these ship from USA? How long were your deliveries?
May 02, 2026 12:41 PM
3 Posts
Joined Nov 2021
ShanersteinMay 02, 2026 12:41 PM
3 Posts
Quote from FloridaKevin :
I cant use crayons here, but If you spend $31 on a panel from EW two times, it will be $62. Let's just say theoretically the renogy is $62. If you are getting 68% from the EW, then that means you are getting 136w from the $62. If you are getting 95% from renogy, then you are getting 95w from the same $62. 136w>95w. I know renogy tends to be a very high quality product, but EW has a pretty good reputation also.
As long as real estate isn't an issue this is 100%.
May 02, 2026 01:05 PM
1,013 Posts
Joined Feb 2012
yakkyMay 02, 2026 01:05 PM
1,013 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
Hoymiles HN-1200 or 1500 are some options, they work with OpenDTU which pairs with HA fairly well.

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May 02, 2026 01:55 PM
637 Posts
Joined Dec 2014
FloridaKevinMay 02, 2026 01:55 PM
637 Posts
Quote from FairPassenger4373 :
But you don't have to pay that much for legit 100 watt solar panels. When I got these 100w Eco-Worthy panels, they cost about as much as my JJNs. Which are the same panel as the Renogy panels but with a different frame. On a meter, the JJNs work exactly as well as the Renogys. Which means they work better than these Eco-Worthies. I only got these because they were bifacial so I hoped they would have better yield over the course of a day. They don't. It's no mystery why they are like 75% the output of other 100 watt panels. It's because they are physically about 75% the size of 100 watt panels. Thus why they are really like 75 watt panels.You can still get real 100 watt panels for the same cost as these. So if you do the math, you are paying to get less by getting these.https://www.aliexpress.us/item/32...39581.html
Im not in the solar industry, but I have been messing with random panels for over 20 years now and I have never heard of JNN

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