where do i put this one? where do i put this one?

light controller

AB Lighting One-Zone Dimming Controller

Grow Lights

AB Lighting One-Zone Dimming Controller

Price range: $99.95 through $199.95
Dimlux Co2 Sensor for Maxi Controller Long- 10 Meters (32.8 ft.)

Plant Care & Accessories

Dimlux Co2 Sensor for Maxi Controller Long- 10 Meters (32.8 ft.)

$616.95
Dimlux Maxi Controller

Grow Lights

Dimlux Maxi Controller

$399.95
Dimlux Maxi Controller 1.3 With Data Log

Grow Lights

Dimlux Maxi Controller 1.3 With Data Log

$499.95