Compact 2W USB Solar Charging Panel — efficient, portable power for small DC devices Key benefits Reliable offgrid charging: 5V/210mA output provides steady USB power for lowcurrent devices, reducing reliance on mains electricity. Works in low light: Grade A monocrystalline silicon with 21.5% conversion efficiency harvests energy even in cloudy or lateday conditions. Ready for travel and outdoor use: Lightweight, 110 mm diameter black panel and a 500 mm USB cable make it simple to carry and connect. What this solves Keeps small electronics running where grid power is unavailable or inconvenient. Provides a simple, cabledriven charging source without the bulk of larger solar arrays or additional electronics. Helps extend runtime for devices that accept 3.7–5V input, avoiding frequent battery swaps. Features and specifications Solar panel: Monocrystalline silicon, Grade A cells, 21.5% conversion efficiency. Power rating: 2W at 5V nominal. Output: 5V / 210mA via USB. Dimensions and design: 110 mm diameter round black panel; compact and lightweight for portability. Cable: Includes 500 mm USB cable for direct connections. Compatible device input: Intended for devices requiring 3.7–5V DC input (smartphones, power banks, solar toys, lights, and other lowpower DC devices). What makes it stand out Monocrystalline cells deliver stable performance across variable light intensities and perform better than many polycrystalline alternatives in diffuse light. USB output simplifies connection — no special connectors or adapters required for standard USBchargeable devices. Small form factor balances portability with useful charging capability for lowpower needs. Practical use scenarios Garden lighting and remote decor: Keep solar garden lights or LED signage topped up in locations without easy access to mains power. Outdoor activities and travel: up a power bank or run USBpowered lights and small electronics while hiking, camping, or commuting. Remote installations and displays: Provide maintenance trickle charging for advertising displays, sensors, or small offgrid systems that accept 3.7–5V input. User notes Designed for lowpower devices; not suitable for fast charging or current applications. Performance depends on available sunlight; output will be lower under heavy cloud cover or obstructed light. For results, position the panel toward direct sunlight and avoid shading. Compatibility checklist Devices that accept 3.7–5V DC input and draw at or below 210mA benefit most. Common compatible items: small power banks, USB lights, solar toys, LED strips or garden lights with low current draw. This compact 2W, 5V USB solar panel delivers reliable, portable green energy for lowpower outdoor and offgrid applications, combining Grade A monocrystalline efficiency with a simple USB connection and a compact 110 mm footprint.