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.

Grower's Choice DE MH 10,000K 1000 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
• Increases resin production by weight during late flowering
• Use in the last 7-14 days of flowering for optimal results
• Can be used 25+ flowering cycles before needing replacement
• Durable quartz glass arc tube ensures long useable life

Specifications

• Spectrum: 10,000K - ideal for the last week or two of flowering
• Lumens Per Watt: 700
• CRI: 90
• Lumens At 100 Hours: 70,000
• Photon Flux: 1350 umol/s
• Lifespan: 6,000 hours

See the full spec sheet here.