Different Light Wavelength Ratio: 35.2W Actual Rated Power, Scientific 169 Led Distribution, Refresh Light Wavelength Red 655-660Nm, Orange 620-625Nm, Ir, Blue 460-465Nm, White Ir Function: Promote Photosynthesis Of Plants, Blue Light Function: Plants Absorb Chlorophyll & Carotene. Reflective Cup Design: Adopt 60-Degree Reflective Cup, Lighting Angle 120, Highly Reflective Optical Principle Guarantee Emitting Uniform Light, 98% Of The Light Can Be Absorbed. Fast Heat Dissipation: Our Led Plant Light Use Special Thick Aluminum Alloy Plate As Heat Dissipation Plate, The Heat Transfer Performance Is Better. Adopt Constant Temperature Technology, Provide Stable Current Lamp Plant Light In Good Performance, Safer To Use. This Design Helps To Dissipate Heat Into The Air And Extends The Life Of The Product. No Fan Noise: Humanize Design: Our Led Grow Light Is Very Quiet, You Can Watch The Plant Grow Every Day And Enjoy The Pleasure Of Cultivating Plants Yourself, At The Same Time You Can Provide Healthier Food For Your Family. All Growth Stages: Perfect Light Ratio, Suitable For All Plants Growth Stage, Germination, Growth, Flowering. Compared With Traditional 45W Grow Lamp, 75W Led Has Higher Wattage And Par Value, And Improve 20-30% Efficiency, Accelerate Plant Growth Speed 3 Times.