Specifications:Name:40W ETFE Solar PanelModel:D93187Material:PET+Monocrystalline silicon cellWaterproof rating: IP65Pmax:40WVoltage:DC18VNOCT(nominal operating cell temperature):40-85°COutput : Type-C ,USB,DC Feature:-The product is used for emergency charging on field vehicles.-You can place the panel in the sun and use it to directly charge your device.-Foldable a suitcase, easy to carry-Suitable for outdoor camping emergency charging Package includes:1x 40W ETFE Solar Panel 1x Alligator clips  ETFE vs PET panels-ETFE can withstand high levels of thermal stress and chemical aggression, much more than PET can do.-High total UV permeability of ETFE: permeability of 95 % (Compared to an average of 80% of PET) .-ETFE is a self-cleaning material that maintains its transparency for its whole life cycle, which in optimal conditions can reach even 20 years .-100% recyclable. Even its production process respect the environment, as it does not require the usage of chemical solvents or petroleum products.- Unlike polymers such as PET or TPT, ETFE is also recommended for usage in particularly hot and dry environments and climates due to its low flammability given by the high flame-retardant factor.