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.
+ Free S&Hat AliExpress
Top Comments
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.
Community Reviews
Eco-Worthy's 100W monocrystalline panel comes across as a very cheap option for backup power, van setups, sheds, and other small solar projects. Real-world reports range from about 75 percent of rated output to roughly 85 to 93 watts in good sun, with some setups lasting years without issues and shipping arriving quickly from the US. The panels are also described as bulky for camping and not ideal for whole-house systems. A few comments flag cracked glass, compatibility checks, and the need to match voltage and wiring carefully.
Common Questions (5)
At this price, some buyers still see it as a cheap way to add solar, but others point out that similarly priced larger panels can deliver true 100W output and may be a better value per watt. The main tradeoff is lower real-world output versus the lower upfront cost.
Real-world output is often below 100W, with reports ranging from about 68% to 76% of rated power, while some setups hit around 85-93W per panel or about 93% on a pair in series. Output depends heavily on sun angle, shading, MPPT efficiency, and whether the bifacial rear side gets light.
These panels are around 18-20V operating voltage, so they need a charge controller to charge a 12V battery and to stop charging when full. Series wiring raises voltage and is useful when your controller or inverter needs more input voltage; parallel keeps voltage the same and is better when shading is a concern.
They are better suited to fixed or semi-fixed installs than camping because they are described as ungainly to carry around. For camping, portable folding panels are the more practical choice, while these rigid panels make more sense on a shed, van, or permanent frame.
Yes, if the power station's input voltage and current limits match the panel wiring. A charge cable or adapter is needed, and series or 2S2P wiring must stay within the station's allowed voltage range; otherwise the setup can be incompatible.
AI-generated summary based on comments from the community. Updated ago
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132 Comments
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If you series all 4 panels you get approximately 90V, if you 2S2P them, it'll be approximately 45V. That's how he was trying to say the volts are half, that's it, nothing more complicated.
You both are saying the same thing, just in a different way.
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