Home / G01 - Fluorescents – Film quality Leds available / FL200-Qty-4. Grey industrial explosion proof vintage fluorescent 4ft 3 lamp T12 c/w 2 ballasts and cord. The centre lamp can be swithched off. Led package available. FL200-Qty-4. Grey industrial explosion proof vintage fluorescent 4ft 3 lamp T12 c/w 2 ballasts and cord. The centre lamp can be swithched off. Led package available.