• justin Spencer Spotlight

    Justin Spencer

    Justin Spencer Mamaradlo is a budding product engineer from ROHM LSI Design Philippines, Inc.,...

  • Joe Brochin

    Joe Brochin

    Joe is a retired Marine Corps veteran with over 26 years experience in telecommunications...

Lightfair 2017 Highlights – IoT focused

Lightfair 2017 took place this year in Philadelphia from May 9-11 and EDN was there to catch the highlights. This year’s event had a stronger focus on the Internet of Things (IoT) with more vendors getting connected. Cree, for example, showcased its new connectivity dashboard that quantified the benefits of a connected building.

However, as the following pages show, Lightfair ranged from the quantitative and technologically innovative, to the pure art of lighting. The emphasis was clearly on making lighting design simple, smart, and beautiful.

Bluetooth low energy mesh for 256 light nodes

Newman Chen, LinkCom’s director of North American operations, was very excited to be showing off proprietary Bluetooth low energy mesh software that allows up to 256 LED lights to be controlled from a smartphone, or from a wall switch. Bluetooth currently allows only seven to be controlled at a time, he said. However, working off Bluetooth 4.1, LinkCom has designed its own mesh software that raises that limit to 256. The smartphone app he used was very intuitive, and among other features, allowed user control of hue or dimming.

LinkCom also announced new members to its INCORE family of LED power supplies, including the 10-30-DTW (dim-to-warm) white-tunable, 30W, triac-dimmable series (seen at left above). The supplies have dual outputs: one is typically connected to an LED with a correlated color temperature (CCT) of 2700K and the other with a CCT of 6500K—with independent dimming control enabling dimming to closely emulate the characteristics of natural light.

Increasing LED driver power density to 1400 W/in3

It’s a constant battle with physics to get drivers small enough to fit into light fixtures, yet have enough energy density to do anything useful without melting or breaking down. Seoul Semiconductor is tackling that problem head on and used Lightfair to show off its NanoDriver, a 16- to 24W LED driver measuring 13.5×13.5×1.42 mm. At 1400 W/in3, the company claims it is 10× the power density of what’s currently available. They may be right. It can drive LED fixtures at up to 2400 lumens.

The latest, coolest fixtures: no photos please

It’s odd for a company to go to a show and not want photos taken of what they were showing, so this shot had to be taken quickly. It’s the latest open-ceiling bay fixture from Flex, a specialist in lighting fixtures.

Two twists that are really unique are the design of the heatsinking, as well as the ability of the two outer lighting rows to rotate up to 45º to widen the arc of light for a given space. It’s hard to see from a photo, but the low-impurity extruded-aluminum casing and fin design not only looks cool, it’s very good at keeping the inner components cool too. It can handle from 6000 to 77,000 lumens and is the company’s fourth-gen design.

Obviously keeping the components cool ensures longer life overall, so the fixture has a life expectancy of at least 10 years. Coincidentally, it uses a Philips Xitanium power supply – based on a Seoul Semiconductor IC.

Link to the full article below.