the best 120w led grow light base on 112 pieces of1w high power LEDs with metal cover,built in 3 pcs 45w constant current source,it will more energy efficient. Input voltage:85-264V,easy to use and safety,suitable for all the countries. Built-in 3pcs fans,solve the heat dissipation excellently to keep the product in. 1.A 120w LED grow light can replace a 800w -1000w high power HPS,over 80% energy saving. 2.Base on the 1w LED chip. 3.Over 5000 hours 4.Our common light ratio:8/1,7/2,7/1/1 with the mixture of red,blue, orange,yellow and white lights,or customized as your requests. 5.Blue LEDs can easily be added to enhance vegetative growth,red LEDs are good for promoting the fruiting and flowering stage,our suggestions on the wavelength are red (620-630nm),red(640-660nm),blue (450-460nm),blue (460-470 nm),You can choose the wavelength and color ratio which is most suitable for your plant growth. 6.Built-in cooling system (thermostatically controlled fans ) solve the heat dissipation excellently. 7.Built-in power supply,CE approved,No setup required,just simpler and safer plugs directly into AC120V/220V,no reflector and ballast needed. 8.Ideal for all phases of plant growth,and works well with any indoor garden,hydroponics or soil based. 9.You can choose the wavelength and color ratio which is most suitable for your plant. 10.Available:14W 45W 50W 90W 120W 150W 200W 300W 600W with 1W led,45X3w,80x3w,100x3w,150wx3w,300w,114x3w,288x3w or Customized. 11.With CE and RoHS approval. 12Sample order acceptable.