This 21W foldable portable solar panel is built with high-efficiency solar cells and a large working area for excellent conversion performance. Dual USB ports (up to 5V/3A each) deliver up to 15W total output and let you charge two devices at once. The triple-fold design folds down to just 23.1×21.5×2.8cm and weighs only 0.44kg, so it slips easily into a backpack. Perfect for camping, hiking, travel, outdoor work and emergency backup – a clean, portable energy companion.

• Max power (Pmax): 21W (max)
• Working voltage (Vmp): 6.6V
• Working current (Imp): 3.18A (max)
• Open-circuit voltage (Voc): 7.6V
• Short-circuit current (Isc): 3.5A
• USB output: Dual USB ports, 15W max (5V / 3A)
• Unfolded size: 69.1×21.5×1.6cm
• Folded size: 23.1×21.5×2.8cm (3-fold)
• Net weight: 0.44kg
• Operating temperature: 10°C – 65°C