led grow light 2000w 3000w double switch phytolamp waterproof chip growth lamp full spectrum plant box lighting indoor

veg/bloom switch: through a wide plant growth testing, the veg/bloom switch, was designed to provide proper light for plants in different growth stages to greatly increase your harvest. veg switch is the blue led and white led only used for seed or seedling growth; bloom switch is the red led and white led. for flowering, both veg and bloom switches can be used. spectrum 390nm-730nm, including uv ir red and blue. plants can get their most desired spectrum from this growth light, suitable for various growth stages such as seed, germination, plant and flowering.