... ballast 3) magnetic ballast 4) long life T8 Fluorescent Lighting Fixture Description:1). Material: use high quality ABC, PC ... moisture, dust, acid and corrosion resistant.4). T8 linear fluorescent tube --1x18w, 2x18w, 1x36w, 2x36w, 1x58w, 2x58w.5). ... Built-in powerful magnetic conductor ballast.9). Water-proof, dust-proof, blast-proof,moisture-proof.10). Application: High-grade restaurant, hotel, ...