8 PLANTS PER 4'X4' - POTPRO PLATFORM SYSTEM (DRAINAGE) (4'x24') grow-light-bulbs This technology enables the fan's

This technology enables the fan's motor to be able to run smoothly at extremely low RPM speeds without generating motor noises and heat as seen on variable voltage controllers

Expandable support clips grow with the plant for continuous support

deficiency symptoms like yellow leaf

NOTE: This item cannot work with a digital ballast

Quiet operation

8 PLANTS PER 4'X4' - POTPRO PLATFORM SYSTEM (DRAINAGE) (4'x24') grow-light-bulbs This technology enables the fan'sIncluded in your Bundle: 48 x PotPro Platform 3 x PotPro Platform Fitting x Elbow (unit) 45 x PotPro Platform Fitting x T (unit) 1 x PotPro Drainage x Elbow (unit) 2 x PotPro Drainage x T (unit) 51 x PotPro Link x 1ft (unit)