... , built in 1 pcs 14w constant current source , it will be more energy efficient 2.Input voltage : 85-264V,easy ... .4. Our common light ratio :165:60 with the mixture of red , blue , orange ,yellow and white lights , or ... no reflector & ballast needed.8. Ideal for all phases of plant growth, and works well with any indoor garden, hydroponics ... . 14w LED grow light used in growing kinds of plants,flowers