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Home > Application > Solar System Complete Set > 400W 18V Flexible Solar Panel Kit for Off-grid Solar System

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400W 18V Flexible Solar Panel Kit for Off-grid Solar System

Name: 400W 18V Flexible Solar Panel Kit for Off-grid Solar System
Brand: Xinyubattery
SKU: 400W 18V Flexible Solar Panel Kit
Price: 404.99 USD
Availability: InStock

400W total power, 25% high conversion efficiency

2×200W ETFE flexible solar panels, N-type 18BB cells

40A MPPT controller with 99% efficiency

Bluetooth APP remote monitoring & RS485 communication

12V/24V auto recognition, wide battery compatibility

Full electrical safety protections & LCD display

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Description

25% high conversion rate: the 200Wx2 solar panel flexible uses a 18BB N-type cell design, which can achieve a high conversion efficiency of 25% and reduce the risk of micro cracks. The light transmission of ETFE material for sunlight can reach more than 95%, which improves the power generation efficiency of solar cells.

High-quality MPPT control: with 99% high efficiency, it can output the maximum power even in cloudy sky, which significantly shortens the charging time and reduces energy loss. There is activation function for lithium batteries and suitable for 12 V/24 V LFP/GEL/SLA/FLD batteries.

Safety and stability: the solar panel has a built-in diode. This means that the solar panel can avoid the return current into the module when there is not enough sunlight or at night. 40A MPPT can protect overcharging, deep discharge, overload, short circuit, reverse polarity and temperature and error codes are displayed on the LCD display to fully ensure system safety.

Easy installation: each 200W solar panel is equipped with 6 pre-shaped metal holes and 6 stainless steel ties, and these metal eyelets are treated to prevent rust.Besides, you can quickly and safely connect the solar panels, charge controller and the entire system with full-fledged cables.

Box contents: this 400 W solar panel flexible kit contains 2 x 18 V 200 W flexible solar panels, 1 x 40 A MPPT charge controller, 1 x 1.5 m controller connection cable, 1 pair of 5 m PV connection cable with single-sided plugs (red and black), a pair of Y-branches and 12 stainless steel rolled strips of solar panel.

Item	Parameter
Model	L02AM200WMMPPT40A-2
System Type	Off-grid flexible solar kit
Total Power	400W (2×200W)
Panel Efficiency	25%
Panel Type	ETFE flexible, N-type 18BB cells
Controller	40A MPPT with Bluetooth & LCD
System Voltage	12V/24V auto
Communication	Bluetooth, RS485
Protection	Overcharge, Overload, Short, Reverse Polarity
Panel Mount	6 pre-drilled holes, stainless steel ties
Kit Includes	2×Panels, 40A MPPT, cables, Y-branch, ties
Application	RV, Boat, Motorhome, Cabin, Off-Grid

FAQ
Q: What is the efficiency of the solar panels?
A: Up to 25% with 18BB N-type cells and ETFE coating.

Q: Does the kit support remote monitoring?
A: Yes, Bluetooth APP for real-time battery status and parameter settings.

Q: What battery voltages are supported?
A: 12V and 24V battery systems automatically recognized.

Q: What safety protections are included?
A: Overcharge, over-discharge, short-circuit, reverse-polarity, over-temperature.

Q: Is the panel suitable for curved surfaces?
A: Yes, flexible ETFE design fits curved roofs, boats, and caravans.

Q: What’s included in the kit?
A: 2×200W panels, 40A MPPT controller, full cables, connectors, mounting ties.

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Founded in 2016, Xinyu Battery is a direct-from-factory brand specializing in premium LiFePO4 batteries for Golf Carts, RVs, and Home Storage. With over 10 years of manufacturing expertise and local warehouses in the US, EU, and UK, we deliver reliable power, fast shipping, and a solid 5-year warranty straight to your door.