No longer at the mercy of the weather. The iPower 600-watt High Pressure Sodium Bulb lets you grow better by providing reliability and performance. By concentrating its output around 550-600nm (yellow to red) wavelength of light, this bulb provides the essential spectrum needed for most plants on proper plant elongation, and maximized photosynthesis efficiency, proper fruiting, blooming, and flowering. Weight 0.375-pound Maximum power 600-watt Base type Mogul E39 Initial lumen (Lm) 85,000 Color temperature 2,100 kelvin Color index (RA) 20 Expected Life Span 24,000 hours Frequency (Hz) 60 Bulb orientation vertical and horizontal Non insect-luring Great fog penetration Compatible with all standard 600-watt digital ballasts.

• Designed specifically for plant growing
• Higher lumen 85,000 comparing to regular hps bulb
• Long life span
• 6 pack quantity

Shipping Note: Shipping to Alaska, Hawaii, PO Boxes and APO addresses not available for this item

Warranty: 1 Year Manufacturer Limited Warranty