A resiliently flexible, rubberized light housing for sealingly enclosing and protecting a light bulb or fixture against moisture and other intrusion. The housing has an elongated, generally tubular body with an open first end and a closed second end. The open first end may receive and retain a bulb or fixture that has an exposed bulb or element or is environmentally sealed. If the bulb or fixture is sealed, then the same may hermetically seal the open first end. If the bulb or fixture is not sealed, then a lens may be included to hermetically seal the open first end with the bulb or fixture in the interior. Electrical wires for connection to the bulb or fixture may be passed through a sealing port on the closed send end. The plurality of ribs are configured for friction contact with the inside of a lighting can.