Luxo Circus LED, 3.5 Diopter (1.88X), White, 45″ Arm, clamp-on base CIL026698. Features large lens for users with impaired vision. The flexible, self-balancing lamp head allows for it to be positioned vertically, horizontally, and laterally. The fully enclosed neck and internal spring-balanced arm are ideal for environments where sanitation is required. Dimming from 10% to 100%, 4 or 9 hour auto shut-off function. Durable construction with steel arm and aluminum head.