The fixture is a Makrolon all plastic non-corrosive construction with a one piece fixture housing and lens. Chemical resistance information for Makrolon can be downloaded from the user manual tab on our website. The diffuse gasketed polycarbonate lens is secured by non-corrosive plastic clips. These versatile fixtures are IP-65 rated for use in variety of unique applications. Knock-out locations are available on both sides of the fixture as well as on top of the fixture as well.Vapor tight lights are ideal for garage lighting: not only is the LED low on energy costs, it also provides a bright light into dark corners, while its sealed fixtures make it dustproof and waterproof—ideal for any garage that also doubles up as a work and hobby space. For durable waterproof lighting that just keeps going, order the LED vapor tight garage light fixture today.