Water shed design. Heavy-duty, one-piece continuously welded, corrosion-resistant aluminum construction with electrostatically applied baked on epoxy finish. High-impact, clear acrylic or prismatic lens. Stainless steel captive hardware. Highly efficient specular reflector. Hinged reflector assembly for easy access to ballast and wiring. Stainless steel hinge optional. Four or six T8 or T5HO lamps.