2W 5V Round Solar Charging Panel — compact, portable solar power for small devices and offgrid needs. Key benefits Portable daytime charging: compact 110 mm diameter design and lightweight construction make it easy to carry for camping, hiking, travel, or field work. Direct USB output: builtin USB output port with a 500 mm cable lets you connect and charge USBpowered devices or power banks without extra adapters. Consistent performance in low light: monocrystalline silicon cell with up to 21.5% conversion rate delivers steady power even on cloudy days or near sunset. Versatile compatibility: designed for small DC devices, battery packs, solar toys, garden lights, building models and most USBpowered gadgets that require 3.7–5 V input. Features and specifications Power: 2 W output at 5 V. Cell type: monocrystalline silicon for higher efficiency and stable output. Conversion efficiency: up to 21.5%. Form factor: round panel, 110 mm diameter — compact for tight spaces and easy transport. Connections: USB output port with a 500 mm (0.5 m) cable for direct device charging. Typical uses: powers small DC devices, charges battery packs, and supplies energy to USB devices requiring 3.7–5 V input. How it solves common problems Eliminates need for mains power during daytime activities: harvests solar energy to run or charge small electronics when no outlet is available. Reduces downtime for devices in the field: direct USB output and cable allow immediate use without extra converters. Maintains functionality in suboptimal light: higherefficiency cell sustains usable output during cloudy conditions or lowlight hours. Practical use scenarios Camping or hiking: keep a power bank or small USB devices charged during a multiday trip by leaving the panel exposed to sunlight during the day. Smallscale projects and hobby use: power solar toys, model buildings, or garden lights in locations where a wired power source is impractical. Emergency or offgrid backup: provide daytime charging for small DC devices and battery packs when grid power is unavailable. What to expect A compact, round 2 W / 5 V solar panel with monocrystalline cells, USB output, and a 500 mm cable for straightforward, portable solar charging of small devices that accept 3.7–5 V input. Reliable, simple, and suited for outdoor and smallsystem applications.