Growers Choice 600 Watt Double-Ended Metal Halide Bulb, 4,000K is no longer available

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

Features:

• Well-balanced light helps plants smoothly transition to the flowering stage
• Useable in all stages of growth
• Cool blue light is also great for industrial or retail applications
• Long useable life: 90% at 5000 hours

Performance Data:

• Light output (Lumens @ 100 Hours): 60,000
• Lumens per Watt (lm/w): 100
• Rated life (Hours @ 10 Hour / start): 6,000
• Correlated Color Temperature (K): 4,000
• Color Rendering Index (CRI) or (Ra): 65
• Photon flux (μmol/s): 800
• Burning Position: HOR±15°