The Sunmaster 1000w Lamp is Dual Spectrum and perfect for Vegetation and Flowering Cycles, so no need to change the lamp!

Proper lighting is a key ingredient in promoting robust, healthy growth as well as meeting the needs of various plant growth phases through optimised spectral outputs. Sunmaster provides the largest, most comprehensive supply of HID lamps and ballasts specifically tailored for the hydroponic and horticultural industries. Simply stated, Sunmaster lamps deliver intense light output with nutritional spectral values.