... light source , base on 288*1 high power LEDs with metal cover , built in 6 pcs 45w constant current ... light ratio :8:1 , 7:2 , 7:1:1 with the mixture of red , blue , orange ,yellow and white lights , or ... ballast needed.8. Ideal for all phases of plant growth, and works well with any indoor garden, hydroponics or soil based. ... the dry place . 300w LED grow light for growing kinds of plants,flowers