Diffrient Light


Though this item is long gone, we’ve curated a few other products that you might also be interested in. Check them out!

Diffrient Light by Humanscale
designed by Niels Diffrient

This desk light offers a virtually unmatched degree of functionality, longevity, and usefulness. Available with 2 different shades and with a pivoting double-arm option- the Diffrient Light is quite possibly the perfect Humanscale product. One of the most common (and overlooked) issues facing workers in the office and at home is the lack of easily adjustable lighting. The Diffrient Light combines adjustable illumination with energy efficient design to provide workers with the optimum amount of light while remaining friendly to the environment.

Diffrient Work Light
Work Light
Diffrient Task Light
Task Light
Shade Asymetric cone-shaped shade offers 140-degree vertical and 360-degree rotational adjustability. Parabolic reflector shade offers 220-degree vertical and 180-degree side-to-side adjustability.
Bulbs Comes with an 18-watt, high-efficiency, compact fluorescent bulb CFL) with true neutral white color (3500K) and a 10,000 hour lifespan. 26-watt compact fluorescent PLC 4-pin bulb with a true neutral white color (3500K) and a 10,000 hour lifespan.

Mounting Options
Diffrient Clamp Mount
Clamp Mount
Diffrient Slatwall Mount
Slatwall Mount
Diffrient Desktop Base
Desktop Base
For grommet or edge mounts. Fits surfaces up to 2" thick and grommet holes 2" or more in diameter. Great for saving space on your desk. Fits most standard slatwall panels- a great way of incorporating lots a accessories onto your desktop within arm's reach. 9" diameter base provides a steady base for your Diffrient Light and is highly mobile.

Read our guide to ergonomic lighting to see what makes it different from standard task lighting.

Materials & Measurements

Primarily made of recycled aluminum. Bulb is a compact fluorescent light (CFL).

Single-arm: 18" total length
Double-arm: 36" total length

Environmental Information

The Diffrient Light is constructed of 100 percent recycled aluminum and can help contribute to LEED credits. The compact fluorescent bulb used in the Diffrient Light is 300-400 percent more energy efficient than a comparable incandescent bulb does and lasts up to 10 times longer. It is also 50-100 percent more energy efficient than light emitting diode (LED) bulbs.

About The Manufacturer

HumanscaleHumanscale's focus since its inception in 1982 has been providing outstanding ergonomic seating and accessories for the home and the office. Their products, which range from task chairs to keyboard trays to CPU holders, are all geared towards making life simpler, easier, and healthier for anyone who works at a desk. Widely recognized for their line of office seating, Humanscale has done much to advance design in some newer product areas- namely in computer and office accessories such as monitor arms, foot machines, and the ergonomic computer mouse. Winner of numerous design awards, Humanscale continues to deliver groundbreaking office tools that combine simplicity, aesthetics, and ergonomics.

Related Categories


Niels DiffrientNiels Diffrient
Designer of the Freedom Chair, the Liberty Chair, and the Diffrient Light, Niels Diffrient is internationally recognized as a premier designer in the field of ergonomics. With a resume that includes collaboration with icons Eero Saarinen and Marco Zanuso, a background in aeronautical engineering, and numerous design awards, Niels Diffrient is undoubtedly one of the most influential designers of the past 50 years.

Born in 1928 in Star, Mississippi, Diffrient attended Wayne State University and eventually enrolled in the Cranbrook Academy of Art, where he won the First Medal of Design three times during his tenure there. After traveling and working in Europe thanks to a Fulbright Scholarship, Diffrient began work at the design firm Henry Dreyfuss Associates, where he would stay for 25 years. While there, he co-authored the three-volume publication Humanscale. This work summarized his design principles which were rooted in the belief that the human body should drive design for products that humans will interact with. In his own words: "A design should look good and be appealing, but without compromising human factors. Aesthetics should enhance the technical side, not deter from it."

    Awards and Honors:
  • 2002 Cooper Hewitt National Design Museum Product Design Award
  • 1996 Chrysler Award for Innovation
  • 2005 Legend Award from Contract Magazine
  • Named the "Granddaddy of the ergonomic revolution by Forbes Magazine in 2007
  • Honorary Royal Designer for Industry Member- awarded by the Royal Society of Arts and Industry
  • 1996 I.D. Magazine Top 40 Design Innovators

Shipping & Delivery

Free Shipping: Free

We love free shipping offers and we thought you might too! And just because it's free doesn't mean we skimp on service. The item will ship with UPS ground service which includes delivery directly to your front door or main office. Once shipped, orders will generally arrive within 2-5 business days. This shipping option is simple, fast, easy (and free)!

Humanscale products come with free standard shipping for destinations within the contiguous United States. This item generally arrives within 1-2 weeks from the date of purchase.

For more information, view Smart Furniture's shipping rates, options, and delivery policies.

Product Q&A


The Diffrient Light comes with a 5-year manufacturer's warranty.