High pressure sodium EXTREME HPS-bulbs are designed specifically for indoor enhanced plant growth and flowering. High Pressure Sodium has a light spectrum shifted towards the red, and is used during the flowering stages of growth. Designed specifically for electronic ballasts. High lumen output and a wide color spectrum for maximum yield. Standard E39 Base. 1 year warranty. - 145,000 Lumens! - Designed for indoor use - Light spectrum towards the red - Used for flowering stages of growth - Compatible with electronic ballasts only - High lumen output - Standard e39 base - 1 Year warranty Case Quantity = 20
