Available in HPS 2K, MH 4K, MH 6K & MH 10K

The Grower's Choice 4K bulb is a slightly warmer metal halide, making it suitable for both flowering and vegetative growth. Growers get the most use out of this style of bulb towards the end of the vegetative stage.   Outputs UV spectra for enhanced resin production 5% degradation rate at 10,000 hours   High quality quartz glass for consistent spectral output and PAR production Designed to prolong bulb life and preserve light quality The Grower's Choice 6K bulb is the best bulb for plants in the vegetative stage. The 6K lamp emits a cool blue light, matching the color of sunlight in spring time. This color of light typically encourages short inter-nodal spacing and bushy plants.   Mimics spring time light, promotes short inter-nodal spacing High quality quartz glass for consistent spectral output and PAR production Great for commercial applications where a large vegetative footprint is desired The Grower's Choice 10K bulb is for growers who are looking to maximize yield and resin production, making it suitable for the last 7-14 days of flowering. The 10K contains UV-B light, which is widely known to increase resin production, as the plant forms its own kind of "sunscreen" to protect itself from the ultraviolet light.   Outputs UV spectra for enhanced resin production 5% degradation rate at 10,000 hours High quality quartz glass for consistent spectral output and PAR production Increases resin production by weight during late flowering