390W BC Monocrystalline Flexible Solar Panel is tailor-made for wholesale bulk orders, boasting over 23.5% conversion efficiency to keep steady high output even in low-light conditions.
Its IP67 waterproof MC4 connectors and -40℃~+85℃ broad working temperature ensure long-term stable outdoor performance. The ultra-thin flexible design adapts to various curved surfaces, with pre-installed adhesive and MC4 cables supporting drill-free fast mounting. It is a top-tier power solution for RV, yacht, trailer distributors and large-scale off-grid energy projects.

Core Product Advantages

High-Efficiency Power – BC back-contact mono silicon cells, 390W peak power, efficiency over 23.5%, capturing 15% more sunlight than conventional panels
IP67 Rating – Waterproof & dustproof MC4 connector, resistant to salt spray, hail and coastal corrosive environments
Ultra-Thin Flexible Build – 3mm thin sheet, static bending radius ≥25cm, seamlessly fits curved RV roofs, vans and yacht hulls
Lightweight Design – Only 4.8 kg / 10.58 lbs, 50% lighter than traditional rigid glass solar panels, easy to transport and mount
Drill-Free Quick Installation – Pre-installed adhesive plus reinforced mounting holes, finish full setup within 15 mins without damaging vehicle structures
Excellent Low-Light Performance – Over 80% power output at 200W/m² weak light, stable power generation on cloudy days
Durable ETFE Surface – Anti-UV & anti-tear coating, tear resistance 10 times higher than standard thin-film panels, withstands 5400Pa wind pressure
Wide Operating Temperature – -40℃ to +85℃ (-40℉~185℉), stable performance in extreme hot and cold outdoor conditions
Safe Electrical Specs – Max system voltage 600V DC, Class II application grade, ±5% power tolerance, compatible with 12V/24V battery banks
Pre-Wired MC4 Connectors – Plug-and-play connection, simple series & parallel expansion
Full International Certifications – UL, CE, FC, RoHS, ISO9001 certified, suitable for global export use
Off-Grid Solar Charging – Independent outdoor power solution, perfect for cabins, sheds, marine vessels and outdoor solar lighting
Airline-Friendly – No built-in battery, convenient for travel and outdoor camping use
We also offer OEM/ODM services for bulk orders of this solar panel.

Package Includes

1 × 390W BC Monocrystalline Flexible Solar Panel
1 × User Manual

Product & Packaging Specs

Model: GT-DSP-S390
Special Feature: Ultra Flexible Panel with BC Back-Contact Solar Cells
Material Type: High-Grade BC Monocrystalline Silicon + Polished ETFE Surface Layer
Low-Light Performance: Output Retention >80% at 200W/m² Irradiance
Application Safety Class: Class II
Cell Efficiency Rating: Over 23.5% Premium BC Monocrystalline Cells
Static Bending Radius: ≥25 cm / ≥9.84 inches
Overall Dimensions: 46.3 × 39.37 × 0.1 in
Net Weight: 4.8 kg
Connector Standard: MC4 Solar Connector
Maximum System Voltage: 600 Volts DC
Operating Temperature Range: -40℃ ~ +85℃
Power Output Tolerance: ±5%
Environmental Protection Rating: IP67 Waterproof & Dustproof

Product Specifications

Item	Parameter	Item	Parameter
Maximum Power	390 W	Maximum Power Voltage	24 V
Maximum Power Current	16.25 A	Open-circuit Voltage	28.5 V
Short-circuit Current	16.45 A	Connector Type	MC4
Operating temperature	-40℃ ~ +85℃	Maximum System Voltage	600V DC
Product Weight	10.58 lbs	Product Dimensions	46.3 × 39.37 × 0.1 in

Frequently Asked Questions (FAQs)

What core advantages does the 390W BC monocrystalline flexible solar panel have compared with ordinary flexible solar panels?

It adopts premium BC back-contact monocrystalline cells with conversion efficiency over 23.5%, capturing 15% more sunlight than traditional panels. The static bending radius reaches ≥25cm to fit curved RV and yacht surfaces. Equipped with anti-UV polished ETFE surface, its tear resistance is 10 times higher than standard thin-film panels. It only weighs 4.8kg (10.58 lbs), 50% lighter than rigid glass solar panels, and maintains over 80% power output under weak light of 200W/m².

What are the standard electrical parameters of 390W BC monocrystalline flexible solar panel? Can it match 12V/24V energy storage batteries?

STC standard parameters: Pmax=390W, Vmp=24V, Voc=28.5V, Imp=16.25A, Isc=16.45A. The 24V maximum power voltage perfectly fits 12V & 24V off-grid battery systems for RV and marine use. Its max system voltage is 600V DC, supporting series and parallel combination expansion.

What international certifications does this panel carry for wholesale sales in Europe and North America?

We have complete global certifications including UL, CE, FC, RoHS and ISO9001. It complies with Class II electrical safety standard, fully meeting import and market access standards of EU and the US, helping wholesalers avoid extra customs compliance costs.

Can the solar panel work under extreme hot and cold climates? What’s its waterproof grade?

Operating temperature range: -40℃ ~ +85℃ (-40℉~185℉), stable performance in frigid northern areas and hot coastal tropics. The MC4 connector is IP67 waterproof & dustproof, the ETFE surface resists salt spray and hail, ideal for marine and all harsh outdoor environments.

Do customers need to drill holes during installation? What accessories are included in the package?

Drill-free installation design. Pre-attached adhesive and reinforced mounting holes are reserved on the panel back. Each package contains 1 piece of 390W solar panel and 1 user manual. The whole installation can be finished within 15 minutes without damaging RV or yacht structures.

What’s the wholesale MOQ, power tolerance and after-sales support for bulk orders?

We accept flexible MOQ and mixed container orders. The panel power tolerance is controlled within ±5%. We provide long-term product warranty, full test reports, technical guidance and free marketing material packs for all wholesale partners.

What target scenarios and end buyers are suitable for this 390W BC monocrystalline flexible solar panel?

It targets off-grid mobile energy markets, widely used for RV, camper vans, yachts, travel trailers, remote cabins, farm sheds and outdoor solar lighting. It is a hot-selling product for RV accessory dealers, marine equipment suppliers and off-grid energy system wholesalers.

What are the size, weight and bending restriction of the panel for shipping and storage planning?

Product dimensions: 1760 × 1000 × 3 mm / 46.3 × 39.37 × 0.1 in; net weight: 4.8kg (10.58 lbs). Static minimum bending radius ≥25cm; excessive bending will break internal cells. Its ultra-thin flexible structure saves shipping space and lowers ocean freight cost for bulk shipments compared with rigid solar panels.

390W BC Monocrystalline Flexible Solar Panel