Growers Supply

Blackout Fan Kits & Accessories

GrowSpan S500 Greenhouse Blackout Systems

Achieve your finest harvest yet with Blackout Systems designed specifically for the GrowSpan S500 Greenhouse. Provide fully automated, effective light deprivation that improves crop quality and minimizes labor.

• Blackout Systems come in four options: Blackout System only, Blackout System w/S500, Blackout System w/S500 and Ventilation Kit and Blackout System w/S500, Ventilation Kit and Evaporative Cooling System.