【Extremely Flexible】- With good flexibility, this solar panel is perfect to be installed on any off-grid living space with curved surfaces such as roofs, campers, trailers, boats, cabins, sheds, tents, yachts and more. 6 pre-drilled mounting holes allow you to secure this flexible solar panel much more easily..【9 Busbars Solar Cell】- Upgraded with 9 busbars (BB) solar cell, HQST solar panel provides high conversion efficiency up to 23%. The narrower busbar space and more cells receiving surface bring lower cost and increase the output of the PV module. Compared with 5BB panel, HQST solar panel ensures lower risks of microcracks and longer service life..【Optimized Conversion Efficiency】- The integrated monocrystalline solar cells combine with polished, ultra-transparent PET on the surface to absorb maximum sunlight and optimize the conversion efficiency, to empower a sustainable life..【Waterproof & Dustproof】-This flexible solar panel is equipped with the IP67-rated junction box to effectively block water splashes and dust from outside, making it perfect to be used outdoors. It is much more durable than traditional glass and aluminum model solar panels..【Ultra-Lightweight Design】- Thinner than two piled pennies (approx. 0.1 in), HQST flexible solar panel only weighs 5.3 lbs, which is very suitable for the assembly of invisible solar energy. And this solar panel is also easy to transport and install.