Plantmax conversion series lamps allow you to use the samefixture/ballast for different stages of plant growth. From the vegetative tothe flowering stages, Plantmax conversion series have it all. This bulb is a360w hps bulb to be used in a 400w mh ballast.

·Initial Lumens: 45,000

·Glass Size: ED37

·Life Hour: 24,000

·Correlated color temperature (CCT): 2,000

· American National StandardsInstitute (ANSI): M59