Topunive 300W Flexible Bifacial Solar Panel, 18BB Monocrystalline, 25% High Efficiency, Lightweight PV Module with MC4 for RV, Boat, Camping, Off-Grid

Topunive 300W Flexible Bifacial Solar Panel, 18BB Monocrystalline, 25% High Efficiency, Lightweight PV Module with MC4 for RV, Boat, Camping, Off-Grid

• Bifacial Transparent Backsheet, 30% Higher Power Output：Our foldable bifacial flexible solar panel comes with transparent rear side rather than opaque backboard. It captures sunlight from both front and back sides, absorbing direct sunlight plus reflected & diffused ambient light, boosting overall power generation by up to 30% vs conventional single-sided solar panels.
• Upgraded 18BB Monocrystalline Cells, 25% Max Conversion Efficiency：Equipped with advanced 18BB mono cell tech (upgraded from competitors’ 16BB design), it reaches a high 25% photoelectric conversion efficiency. Thinner busbar ribbons cut shading area by 22% to expand light-receiving surface for higher efficiency and longer lifespan. Directly compatible with 38V batteries; series connection of multiple panels supports 48V battery charging for customized off-grid power system.
• Double Fiberglass & Premium ETFE Surface, Crack-proof & Long Durability：Constructed with dual-layer fiberglass protection to fully wrap monocrystalline cells against impact damage, effectively lowering cell cracking risk and extending service life. Adopting premium ETFE instead of ordinary PET as surface material, the panel features scratch-resistant, self-cleaning and sand-proof performance, avoiding delamination after long-term outdoor use and preventing abrasion damage during transportation and daily maintenance.
• Foldable Ultra-light Compact Design, Space-saving & Low Roof Load：Unfolded dimensions: 56.2 × 44.4 inch; Folded compact size: 44.4 × 28.1 inch. Net weight only 10.36 lb; Benefiting from N-type 18BB cell configuration, the panel is ultra-lightweight and compact to reduce roof load greatly. Compared with assembling multiple small-wattage panels, our single high-power module saves 11% installation space and lessens wiring loss. Foldable design allows more panels to be arranged on RV/boat roof to expand your off-grid power system for daily household electricity needs.
• Flexible for Curved Surfaces, Easy DIY Installation with MC4 Connector：Flexible bendable design is specially engineered for irregular curved surfaces of RV, yacht, camping tent and residential rooftop. Pre-drilled mounting holes on the back enable quick installation without heavy tools, compatible with most universal mounting brackets. Fitted with IP68 waterproof junction box with pre-installed bypass diodes and pre-attached MC4 cables, it works stably in all harsh outdoor weather for RV, boat, camping and home off-grid applications.