Shade Cloth 30% Black 20 x 100 FT Lighting Accessories Pumps up to 1/4-inch solids

Pumps up to 1/4-inch solids

but this LED light board use aluminum to make it cool down instead use fans

I use it every week in my greenhouse and it still holds its edge after months of use

Easy to use

Bio·Heaven™increases the chelate of essential macro and micro nutrients

Shade Cloth 30% Black 20 x 100 FT Lighting Accessories Pumps up to 1/4-inch solidsGROW1 Greenhouse Shade Cloth is constructed of a knitted, heavy duty, high density polyethylene (HDPE) built to withstand the elements and years of use. Manufactured from HDPE with UV Protection, durable enough to withstand all weather conditions. Provides optimal visibility blockage due to the unique knitted light deprivation design. Features Black Knitted HDPE Material 20ft x 100ft Size 30% Light Deprivation Durable + High Airflow Material