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Humanscale Diffrient Task Light, Lamps & Diffrient Desk Lamps | YLighting

Diffrient Task Light

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Design by Niels Diffrient.

An effortlessly adjustable task light that supports the latest ballast-in-bulb technology, the Diffrient Task Light II maximizes the efficiency of compact fluorescent lamps to provide long-lasting pure white illumination. The sleek parabolic reflector shade minimizes glare and optimizes light distribution, while the highly engineered design provides effortless, balanced movement for easy positioning.


  • Reinforced plastic reflector shade cuts glare and stays cool.
  • Lower rear lip on shade to further reduce direct glare.
  • Perfect internal counterbalance for one-touch positioning.
  • Feather-light movement.
  • No friction knobs or rigid joints.
  • 180° horizontal and 220° vertical shade adjustability and 360° base rotation allow for infinite adjustability.
  • Multiple mounting options.
  • Choose from single or double arm.

The Diffrient Task Light is a great example of Humanscale's environmental purpose. Contains 90% recycled content and is 90% recyclable. Can also help building projects achieve valuable LEED credits.

Material(s): Aluminum


  • Single Arm: 18"L
  • Double Arm: up to 42" reach


Bulbs: 1 X 18W 120V GU24 based slim-line, 3500K, compact fluorescent lamp (included); other wattages or color temperatures are offered.

Listing: UL, CUL

Manufacturer Specifications: Click to download specifications.

Instructions: Instructions Sheet 1, Instructions Sheet 2

Model(s): DA1E DA2E

Niels Diffrient

Niels Diffrient's designs are grounded in the philosophy that form follows function. His work has spanned generations, consistently looking past trends to reinvent the tools we use for daily living.

With an academic foundation in design and architecture and a degree from Cranbrook Academy, Diffrient channels his knowledge of engineering, architecture, and human factors into the creation of highly functional and aesthetically timeless designs.

From his early work with the studios of Eero Saarinen, Marco Zanuso, and Henry Dreyfuss to his current work with Humanscale, Diffrient's visionary talent has been widely recognized. Included among his many honors are the 2002 National Design Award from the Smithsonian's Cooper-Hewitt, National Design Museum, and the 1999 Chrysler Design Award. In recent years, Diffrient has focused his energies on designs for the office environment, particularly seating--a category in which he has pioneered numerous breakthroughs, from pneumatic cylinders for seat height adjustment to weight-activated automatic recline.


Creating a more comfortable place to work. Task lighting is an integral part of the ergonomic workstation, and each of Humanscale's task lights provides exceptional levels of bright, comfortable light. Yielding both ergonomic and economic benefits, Humanscale's comprehensive lighting line fits any needs, whether you desire performance, efficiency, ease of use, or all of the above.

Since the start in 1983, Humanscale has built a solid reputation - and amassed an impressive trophy collection - as a design and innovation leader. The Humanscale mission is to develop high-performance ergonomic office tools that solve functional problems as simply and elegantly as possible.

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