... 1 , 7:2 , 7:1:1 with the mixture of red , blue , orange ,yellow and white lights , or ... reflector & ballast needed.8. Ideal for all phases of plant growth, and works well with any indoor garden ... power before installment, don't touch the surface of the lights when light on 3. Please make ... Make sure the installment place could afford 10 times of the weight of light..6. Installed position must be no shock ...