... common light ratio :8:1,7:2,7:1:1 with the mixture of red,blue,orange,yellow and white lights ... .Ideal for all phases of plant growth, and works well with any indoor garden, hydroponics or soil based. Advantage of Start ... and 2 years warrantyApplication:Suitable for Hydroponics & Horticulture &greenhouseCan be used with fluorescent lights and sodium lamp ,suitable for the vegetable shed ...