Humboldt Nutrients Bloom grow-light-bulbs they are fluted on both

they are fluted on both ends to ease connection to ducting

SNS-604A & SNS-604B enhance nutrient mineral uptake and transport in your plants

At the narrowest setting your light casts a 36" wide footprint and at the widest setting the footprint is 72" wide (at 16" height from the top of the canopy)

This makes your light effectively work twice for you

The RAY44 supports standard 0-10V dimming and is compatible with most 0-10V controllers

Humboldt Nutrients Bloom grow-light-bulbs they are fluted on bothNPK 0 6 5 Humboldt Nutrients Bloom formula, was designed in Humboldt County to be used with our Grow and Micro to be a complete growing nutrient system for hydroponics as well as other growing mediums. Humboldt Nutrients has developed this vigorous three part fertilizer without the use synthetic chelates. Bloom is specifically formulated to improve plant photosynthesis, metabolism, genetics and eventually crop quality and yield. Plant Growth,