Ironclad LED vapor-tight, high-bay luminaire is a retrofit for fluorescent fixtures commonly installed in applications exposed to moisture, dust, and other harsh elements that require frequent wash down. With lumen outputs of 22,000 and 33,000, the NSF-rated, non-metallic LED solution replaces a six-lamp T8 or six-lamp T5 fixture. Applications include installation in ceiling heights of 20 to 30 ft. The luminaire is constructed of fiberglass-reinforced polycarbonate with a seamless gasket seal and stainless-steel components. Rounded edges allow water runoff.