Hydro Crunch HPS (High Pressure Sodium) Grow lights have an effective spectral distribution for your plant's flowering stage. High Pressure Sodium light helps stimulate flower and fruit production in plants more efficiently than other light sources designed for growing plants. It is best to use HPS Grow Lights for the fruiting and flowering phase of plant growth or in a 4:1 ratio of HPS to MH for best results.

Lumens: 53,500

Lamp Compatibility: Operates on 400W Digital or 400W Magnetic ballast

Color Temperature: 2,100K

Base type: Mogul E39 Base

Color Index: (RA): 20

Frequency (Hz): 60

Life Span: 28,000 HR

Safety: S51 ANSI SPEC

Use: Flowering and Fruiting