... to keep the product in normal use .Specifications90W UFO LED plant lightInput valtage: AC85-264VPower: 90*1WReplace the 270w-450w HPSLifespan ... wavelength and color ratio which is most suitable for your plant growth 6. Built-in cooling system (thermostatically controlled fans ) ... no reflector & ballast needed.8. Ideal for all phases of plant growth, and works well with any indoor garden, hydroponics or ...