If you have been searching for a reliable source of power to charge your electronic devices, RV, watering system, caravan and camper trailer, etc., this 250W solar panel is the perfect investment for you. This eco-friendly solution is heavy-duty constructed, which is ideal for people who like to spend most of their time at home or RV. A-grade Monocrystalline, whose energy conversion is 23.5% more efficient than previous generation, is born to provide rapid and reliable source of power when your electronic devices are running out of it. And this fixed module is equipped with premium PET films, which features superior light penetration rate and guarantees reliable power supply in low light conditions. Tempered glass enables it to resist impact, shock, vibration and even hail.