The Grower's Choice DE HPS 2K bulb is the optimal choice for blooming plants. Though the 2K HPS can be used in all stages of growth, it contains high concentrations of red and yellow light in its spectral output, which mimics the natural color of sunlight in the fall, making it best for flowering periods.

Grower's Choice DE HPS 2000K 600 Watt Bulb Features

• 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
• Enhanced green and blue for more natural growth
• Ultra high output: 1200 umol/s
• Peaks in the far-red range to stimulate metabolic activity in flowering plants

Specifications

• Spectrum: 2000K - ideal for bloom
• Lumens Per Watt: 150
• CRI: 32
• Lumens At 100 Hours: 90,000
• Photon Flux: 1200 umol/s
• Lifespan: 15,000 hours

See the full spec sheet here.