The aluminium acts as a heat-sync, making the panel both efficient and hard-wearing and it can charge devices even in low light conditions thanks to the MPPT (Maximum Power Point Tracker) technology included. The non-reflective, photovoltaic solar panels are tough enough to take the general knocks and spills of outdoor enthusiasts and professionals alike while the clamshell design perfectly protects the panels when not in use. The clever design means it can open to a 225 degree angle, enabling it to fit perfectly around a backpack, across bike panniers or along the roof of a tent so you can charge, whatever you're doing. Weighing just 410g and measuring 110 x 200 x 18mm when folded, waterproof IPX6 rating.