21W SOLAR FOLDING BAG. 1. Solar panel peak power: 21W. 2. Solar conversion efficiency:> 18%. 3. Output voltage and current: 5V * 2.4A. 4. 2 USB output. 5. Material: PET laminated solar panels, 600D PVC plastic waterproof fabric. 6. Color: black (can be customized).
7. Color: black (can be customized).
10.5W Folding Solar Panel
21W Folding Solar Panel
Maximum System Voltage
Maximum power temperature Coefficient
Open circuit voltage temperature coefficient Temperature
Temperature coefficient of short circuit current
Test standard conditions
Am1.5 25℃ 1000W/㎡
40℃/90%RH g/M².Day 10.2
Water absorption rate
Testing environment (STC)： Spectral energy ： 1KW/㎡.Air pressure AM=1.5 , The light conditions are 38000W Lux（ Lighting unit ） Electronic load test. 38000W Lux .
Junction box indicator light
The junction box indicator light allows users to visually see whether the solar panel is working properly
A storage bag with Velcro can be used to store small devices such as mobile phones, charging bags, and camera batteries, and avoid direct sunlight
Handmade, excellent sewing process, do not have a loose line or an exposed edge, the product is good workmanship, durable and affordable
Large enough eye rivets allow for easy fixation of solar panels in a variety of review environments
Using Sunpower solar cell ，up to 21% efficiency that makes sure the solar panel provide enough power