1. Classified by Technology Type

1.1 Monocrystalline Silicon Solar Panels

Features: These solar panels use single-crystal silicon. The cells feature rounded edges and a dark black color. They have an orderly atomic arrangement. The photoelectric conversion efficiency typically ranges between 18%-22%. They represent one of the most efficient technological routes for civilian use.

Applicable Scenarios: These solar panels excel in scenarios demanding high power per unit area. For example, on long-distance hikes with limited backpack space, a 100W monocrystalline solar panel saves approximately 15% storage space compared to a polycrystalline solar panel. It provides more reliable power for critical devices like GPS units and satellite phones.

1.2 Polycrystalline Silicon Solar Panels

Features: Manufacturers produce these solar panels by melting multiple silicon crystals into ingots and slicing them. The surface displays uneven blue crystal patterns. The production process is relatively simple, and the cost is low. However, the conversion efficiency typically ranges between 15%-18%. This is slightly lower than monocrystalline silicon.

Applicable Scenarios: These solar panels offer a cost-effective choice for family camping or park outings. They suit good lighting conditions where users do not require extreme charging speed. For example, an 80W polycrystalline board can fully charge a 20000mAh power bank in about 3-4 hours under ample midday sunlight.

1.3 Flexible Thin-Film Solar Panels

Features: These solar panels use amorphous silicon, CIGS, and other materials attached to a flexible substrate. Their thickness measures only a few millimeters. They weigh approximately 60% less than rigid solar panels of the same power. They can bend to a certain angle and offer good impact resistance. However, their efficiency generally ranges between 10%-15%. Their low-light performance is sometimes superior.

Applicable Scenarios: Their lightweight and flexible characteristics perfectly adapt to non-flat surfaces. Users can easily attach them to backpacks, tents, RV roofs, or hulls. For example, sew a 40W flexible board onto the outside of a hiking pack. It continuously recharges the mobile power supply inside the pack during movement. This achieves true “charging while walking.”

2. Classified by Structural Design

2.1 Foldable Solar Panels

Features: Multiple smaller solar panels connect through durable folding hinges. The unfolded area can reach 0.5-1 square meters to obtain sufficient power. When folded, they become the size of a notebook and are easy to carry. Mainstream products usually integrate intelligent charging chips and multiple output interfaces. This achieves “out-of-the-box use.”

Applicable Scenarios: This design balances power and portability as a mainstream choice. Backpackers and photographers favor it. For example, a 120W tri-fold solar panel folds down to only A4 paper size. It can charge a DSLR camera battery 4-5 times. It meets the power needs for multi-day field shooting.

2.2 Rolling Shutter Solar Panels

Features: These solar panels use flexible solar panels with a rollable substrate. They roll up like a scroll during storage and are extremely lightweight. Their unfolded area is large, but the wind resistance is weak. Users must secure them with attached straps or hooks during use.

Applicable Scenarios: These solar panels suit exploration activities that are extremely sensitive to weight. Examples include ultra-long-distance cycling or rafting. For example, cyclists can unfold a 100W rolling solar panel and fix it on a luggage trailer. Its daily power generation can exceed 400Wh. This supports navigation devices, headlights, and mobile phones with 24/7 power.

2.3 Rigid Solar Panels

Features: These solar panels feature traditional rigid frame encapsulation. Aluminum alloy frames and tempered glass protect them. They offer excellent stability and durability. The expected service life exceeds 20 years. Their efficiency is high, but their weight and volume are large. Portability is relatively poor.

Applicable Scenarios: These solar panels mainly serve semi-permanent scenarios like fixed base camping, RV parking, power supply, or cabins. For example, you can install two 100W rigid solar panels on an RV roof. Pair them with batteries. You can achieve basic power freedom for lighting, fans, and small appliances at campsites without mains electricity.

3. Classified by Power and Purpose

3.1 Small Power Portable Board (10W~60W)

Features: Power output focuses on low-voltage DC. These boards typically include 1-4 USB-A/USB-C interfaces. Some support fast charging protocols like PD/QC. Their design achieves extreme lightness. The curb weight ranges from 300 to 800 grams.

Applicable Scenarios: Designers create them specifically for day hiking, park leisure, or emergency disaster preparedness kits. They maintain the battery life of small digital devices like smartphones, wristbands, and headlamps. For example, a 20W mini folding solar panel can fully charge an iPhone 15 in about 2.5 hours on clear spring or autumn days.

3.2 Medium-High Power Portable Board (80W~200W)

Features: Power increases significantly. The core output is a 12V/24V DC port. Multiple USB interfaces supplement the core output. Users must pair them with a controller. Manufacturers often design them for parallel connection or direct attachment to large-capacity outdoor power stations.

Applicable Scenarios: These boards meet higher power demands for multi-day camping, road trips, or family outdoor gatherings. They can power devices with large power consumption, like laptops, drones, car refrigerators, and projectors. For example, a 160W folding solar panel can replenish about 70% of a 500Wh outdoor power station during 4 hours of midday sunlight. This provides enough power to run a mini refrigerator for over 10 hours.

3.3 High Power Splicing Board (above 200W)

Features: These solar panels adopt a modular design. A single solar panel typically delivers 100W-200W. Users can easily expand the total power to 400W, 600W, or even higher through parallel cables. And the solar power systems usually require an independent MPPT controller to manage efficient charging.

Applicable Scenarios: These solar panels serve professional or heavy off-grid power scenarios. Examples include field documentary filming teams, geological surveys, outdoor rescue base stations, or long-term off-grid living. For example, four 200W solar panels form an 800W temporary array. It can generate over 3.5 kWh of electricity on a sunny day. This stably supports the continuous operation of workstation computers, communication equipment, and medical refrigerators.