Method Seven Resistance HPS Glasses | German Glass Lens Root Aphids UL Listed: Reads cleanly on

UL Listed: Reads cleanly on inspection without custom wiring sign-off

Built for indoor and greenhouse use: Quick drying

making it an excellent choice for personal cultivation

Keeps irrigation system cleaner and running efficiently and longer

so an unattended room cannot be over-dried

Method Seven Resistance HPS Glasses | German Glass Lens Root Aphids UL Listed: Reads cleanly onWhat the Method Seven Resistance Corrects Under HPS Sodium light lies to you. It floods a room with yellow, so a deficiency, a mildew spot and a healthy leaf all read much the same. These lenses use notch filtering, blocking the narrow bands HPS over produces and letting the rest through. Colour comes back. You can judge a leaf without walking it outside. Wearing HPS Glasses Through a Full Shift Glass is the difference in this model. Lenses are German