Bluelab pH Pen Telos LED or the 600W Boost setting

or the 600W Boost setting may be selected to give maximum light output

It’s the first and only LED 1:1 replacement for HPS in the industry

The Bluelab EC Pen should be calibrated before use and we also recommend that the unit is recalibrated every 10 measurements or so in order to maintain its accuracy

its applications are only limited by your imagination

Raw B-Vitamin can be used at all times of growth and bloom and is a beneficial supplement to all feeding schedules

Bluelab pH Pen Telos LED or the 600W Boost settingThe Bluelab pH Pen is a great little hand held device for measuring the acidity alkalinity of your nutrient solution. Bluelab products are trusted by growers across the globe for their accuracy and reliability the handy new pH Pen is no exception! With temperature compensation, it provides highly accurate readings, as well as displaying the temperature of your nutrient solution onscreen