Is this monocrystalline or amorphous?

High efficiency monocrystalline solar cells

1. can i connect 2 solar panels in parallel to get 40w (higher currency to 12v battery)? 2. can i use the same 10a controler?

Yes you can just don’t go over the rated amps on your controller

Topsolar Solar Panel Kit 20W 12V Monocrystalline with 10A Solar Charge Controller + Extension Cable with Battery Clips O-Ring Terminal for RV Marine Boat Off Grid System

Product ID: 256390836

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Details

Brand
Topsolar
Efficiency
High
Included components
NO
Material
Silicon
Product dimensions
80L x 40W x

⚡10A smart solar charge controller

🔋20W high-efficiency power output

🛠️Pre-drilled holes for quick installation

Description

☀️ Power your freedom with smart solar energy—never miss a charge!

PLUG PLAY SETUP - Includes extension cables with battery clips and O-ring terminals for hassle-free installation.
DURABLE BUILD QUALITY - Tempered glass and aluminum frame ensure long-lasting performance in harsh environments.
LIGHTWEIGHT PORTABLE - Compact 1.95 kg panel with easy carry design—perfect for spontaneous outdoor adventures.
RELIABLE OFF GRID POWER - Keep your 12V batteries charged anywhere—RV, boat, cabin, or remote site.
SMART BATTERY PROTECTION - 10A controller prevents overcharge, short circuit, and reversed polarity for ultimate safety.

The Topsolar 20W 12V Monocrystalline Solar Panel Kit combines high-efficiency solar power with a 10A charge controller to safely maintain 12V batteries in off-grid applications. Designed for RVs, boats, cabins, and remote setups, it features durable tempered glass, an aluminum frame, and pre-drilled mounting holes for quick installation. Lightweight and portable, this kit includes extension cables with battery clips and O-ring terminals, ensuring a seamless plug-and-play experience backed by a 12-month warranty.

Specifications

ASIN	B07RZBVTGR
ASIN	B07RZBVTGR
Amperage Capacity	10 Amps
Brand Name	Topsolar
Connector Type	USB
Customer Reviews	4.3 4.3 out of 5 stars (5,181)
Customer reviews	4.3 4.3 out of 5 stars (5,181)
Date First Available	2 October 2019
Efficiency	High efficiency
Included Components	NO
Item Dimensions L x W x H	80L x 40W x 2.5H centimeters
Item model number	TOPSPM
Manufacturer	Topsolar
Manufacturer	Topsolar
Manufacturer Part Number	T02P20C10BW0.83-1
Material Type	Monocrystalline Silicon
Maximum Power	20 Watts
Maximum Voltage	12 Volts
Model Number	TOPSPM
Product Dimensions	80 x 40 x 2.5 cm; 1.95 kg
Special Features	Short Circuit Protection
UPC	736256963690 764686116546 786515614139 735661123187 752502123205 752509632052 752585963699 746548912510 756464631891 754147981646 785896032259 732696987562 746581614648 746541982411 605646777158 721526987452

Reviews

L**N

Failed

Salt the controller failed after one day.

17.04.2024

M**M

Good overall performance. Well build and easy to install. Vert pleased with this purchase and I recommend this product and thé seller.

18.08.2024

S**0

Très bien, cependant prévoir un stockage (batterie) il est depuis 2 ans dehors (été comme hiver) et pas de PB

2.07.2025

B**N

Great product, installed on my boat to charge my batterie. The usb port is also very nice.

31.08.2021

M**O

Bien funciona bien

9.11.2025

K**R

Works as described little on flimsy side would recommend and purchase again no complaints as it does what it says and reasonable priced prompt delivery

29.08.2023

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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€ 113.16

Duties & taxes incl.

Irelandstore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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