lower price Solar Energy System Company Advantages 1. Competitive factory direct price, fast delivery. 2. The company is focusing on R & D and production, quality assurance 2. One-stop solution to the complete solar energy system can save your time and money. 3. Professional sales team, exported to Europe and southeast Asia. 4. For large-scale solar power station projects, engineers can provide on-site guidance and installation services. 5. OEM service is acceptable and customized LOGO can be printed on the product. Features 1. 450W solar charging board 2. The photoelectric conversion rate is up to 18% 3. High conversion rate, slow attenuation 4. High quality semiconductor material- positive 5. A class mono-crystalline silicon cell, stable performance, slow attenuation. Products must be rigorously tested by tester and EL infrared before leaving the factory. Tips 1. five year warranty, if it is a quality problem, we will provide parts for free. 2. If there is a problem with the machine during the warranty period, please contact ****://****.oritron-solar.com/solar-energy-system/