... normal PCB, excellent heat dissipation;5. Built-in fan for active heat dissipation, no high wattage cooling systems needed, no ... and play, wide input voltage range, various plugs available for different countries;12. Environment friendly, no hazardous materials such ... mercury, lead and so on;13. Can be widely used for hydroponics, horticulture, greenhouse lighting, seeding, seedling, breeding, farm, ...