Spider Farmer UV60 & IR30 LED Grow Light Bars Set - 90cm not finished Humic & Fulvic Acids: Enhance

Humic & Fulvic Acids: Enhance nutrient uptake

The horizontal orientation can provide two separate levels for humidity domes

Electrodes on meters invariably become coated with impurities

you’ll be able to measure conductivity

Spray while lights are on

Spider Farmer UV60 & IR30 LED Grow Light Bars Set - 90cm not finished Humic & Fulvic Acids: EnhanceSpider Farmer's UV60 & IR30 light bar set adds targeted 365nm ultraviolet and 730nm far red output to an existing grow light, letting you supplement the parts of the spectrum a standard full spectrum panel leaves out. The set pairs two 90cm UV bars with two 90cm IR bars and is intended to run alongside a main light of 500W or more. Why growers choose the UV60 & IR30 set UV supplement (365 370nm): Spider Farmer positions the UV bars to help lift yield,