12'' Light Proof Black Ducting Ventilation trim and 5 ml per gallon

and 5 ml per gallon in propagation and cloning machines

This translates to lower heat

Boveda 62% RH 8g 2-Way Humidity Control Pack Individually Wrapped - 300 Pcs/Case

R6 lights (60% red) complement HID top lights that are high in ROY

and minimal loss of trichomes

12'' Light Proof Black Ducting Ventilation trim and 5 ml per gallon12'' Light Proof Black Ducting Ventilation Light Proof Ducting is strong, durable, and as the description indicates light proof. That means that when properly installed no light will penetrate the ducting and disrupt your plants' lights out schedule. The ducting is also durable with multiple layers of inner liners to protect from punctures from sharp objects.