Tired of all the noise and smell from your diesel generator? The Instapark SP-30W solar panel offers you a quiet, clean while carbon-free alternative. Capable of converting virtually unlimited solar energy into clean, green, most importantly, free electricity, this solar panel is made of high efficiency mono-crystalline solar cells embedded in transparent vinyl acetate behind tempered glass with heavy back sheet ensuring maintenance free performance. Unlike amorphous solar panels, which only last about 5-7 years of continuous use, mono-crystalline solar panels can still retain over 80% of efficiency even after 25 years of continuous use. Also, the mono-crystalline panels are much more efficient and thus smaller in size while producing higher wattage. This solar panel is designed and engineered to primarily charge 12-Volt batteries, which store and provide usable power when needed, ideal for powering your RVs, ATV, marine boats and electronic equipments. Other than recreational applications, solar power can also help lower your energy bills by reducing your dependence on the main electrical grid and provide back-up power during power outages. All Instapark solar panels have a 5-year limited product warranty that covers its Photovoltaic modules to be free from defects in materials and workmanship under normal application, installation, use and service conditions, and a power warranty that guarantees a power output greater than 80% of the minimum peak power as specified within 25 years from the date of delivery. If the PV modules fail to conform to these warranties, then Instapark will, at its sole discretion, either repair or replace the product.