Lim describes Tack as a "multifunctional home lighting system designed for simplicity, adaptability and modernity". At 23 x 6 x 7 cm (9 x 2.4 x 2.8 in), it is about the size of a water bottle and can easily be packed into a bag when moving. A magnetic mounting strip attaches to a wall using 3M adhesive pads, and the light can then be attached to the strip aiming downwards, directly against the wall or upwards, depending on the lighting effect desired. It can also be removed from the wall and used as a desktop device.
With a brightness of up to 1200 lumens, the Tack is claimed to be two to three times brighter than existing task lights. To turn the light on or off, users need only tap the touch pad on its side, while the brightness can be adjusted by tapping and holding the side. The light remembers the brightness set previously when it is turned back on and a glowing blue nightlight is used to illuminate the touch switch in the dark when the lamp is in standby mode.
The lamp is made of aluminum, steel and HDPE, which are all recyclable. The housing is available in a variety of colors and the included 1.8 m (6 ft) power cable is fabric braided to prevent kinks. Lim says users can expect a minimum lifespan of 15 years from their Tack light, with an average daily use of 6 hours.
A Kickstarter crowdfunding campaign is ongoing for the Tack. At the time of writing, individuals can pledge from US$50 to receive one of the lights, if all goes to plan, with shipping expected from May this year.
The video below is the Kickstarter pitch video for the Tack light.