The 21W Portable 24V Solar Charger Panel is a lightweight, foldable solution featuring high-efficiency N-type monocrystalline cells with a 23.5% conversion rate, delivering stable 24V/0.9A peak power output for portable power stations and compatible devices. Designed for outdoor use, it offers IP68-rated durability via its integrated lamination process, an ultra-compact form factor, and reliable low-light performance. It is ideal for camping, hiking, RV trips, and emergency power needs, with full international certifications (CE/UL/TUV/ISO/IEC) and flexible customization options (interface, logo, packaging) available for bulk orders.

Core Product Advantages

Superior Performance: N-type monocrystalline cells with 23.5% efficiency and great low-light performance. IP68 waterproof & dustproof for long outdoor use.
Stable 24V Output: 0.9A peak current, ideal for portable power stations and compatible devices.
Reliable Quality & Full Certifications: Made by an 18-year experienced manufacturer. CE, UL, TUV and ISO/IEC certified for global sales.
Stable Supply & Cost-Efficiency: Global factories and 5 overseas warehouses guarantee on-time delivery, faster logistics and favorable tariffs.
Flexible Customization: OEM & ODM available for interfaces, logos and packaging.
Trusted Reputation: Exported to 60+ countries with high repurchase rate, recognized by top outdoor brands.

The 21W Portable Solar Charger Panel (GT-A-21W) is a high-efficiency monocrystalline solar panel designed for B2B wholesale and OEM customization. With 21W max power, 24V output, and IP68 waterproof rating, it is ideal for distributors and outdoor gear brands.

Package Includes

1 × 21W Portable Solar Panel
1 × User Manual

Product & Packaging Specs

Model: GT-FD21-UL-LM
Special Feature: Portable & Foldable
Material Type: N-type Monocrystalline Silicon, ETFE
Low-light performance: Excellent low-light adaptability
Application Class: Class II
Efficiency: 23.5% high conversion rate
Bending radius: ≥25 cm (static) / ≥9.84 inches (static)
Product Dimensions: 480 × 300 × 3 mm
Output: 24V, 0.9A peak current
Protection Rating: IP68 Waterproof & Dustproof

Product Specifications

Item	Parameter	Item	Parameter
Model	GT-A-21W	Maximum Power (Pmax)	21W
Peak Voltage (Vmp)	24V	Peak Current (Imp)	0.9A
Open-circuit Voltage (Voc)	28.8V	Short-circuit Current (Isc)	1.0A
Conversion Efficiency	23.5%	Cell Type	N-type Monocrystalline Silicon
Dimensions	420 × 300 × 3 mm	Weight	0.7 kg

Frequently Asked Questions (FAQs)

What devices can this solar panel charge?

It is compatible with smartphones, power banks, Bluetooth speakers, cameras, and other 5V USB-powered devices, with a maximum output of 3.2A.

Is the 5V output regulated? Will it damage my devices?

Yes, it has a built-in voltage regulator to ensure stable 5V output, preventing overcharging or voltage spikes to protect your electronics.

What is the MOQ for wholesale orders?

We offer flexible MOQ for trial orders and bulk purchases, with competitive pricing based on order quantity.

Can I customize the connector or logo?

Yes, we support USB/Type-C interface, cable length, logo printing, and packaging customization to meet your brand requirements.

What certifications does this panel have?

It comes with CE, FCC, RoHS certifications, meeting the standards for sales in North America, Europe, and other major markets.

How long is the lead time for bulk orders?

Standard orders take 7-15 days. We maintain stable supply even in peak seasons and prioritize rush orders.

Is it waterproof and suitable for outdoor use?

Yes, it features an IP67 waterproof and dustproof rating, designed for use in camping, hiking, and rainy conditions.

What is the warranty policy?

We offer a 2-year limited warranty, with reliable after-sales support and low defective rates for bulk orders.

21W Portable Solar Charger Panel