Unique new lighting breakthrough simulates daylight; use with VisionSaver lamps Replacement light bulk simulates natural lighting for true-to-life colors. Eliminates eye-strain. All bulbs are used with Ott-Lite lamps (keywords: VisionSaver series). Use long-life, 13-watt low energy swirl bulb (part number T133SX) with Banker's and Barrister's lamps.The 13-watt tube (part number T13330) is required for the Ott-Lite lamp with reading magnifier.VisionSaver Crane and DesignPro lamps require the 18-watt (part number T18330) tube.
