SSL Technology Update: September 17, 2012

Sept. 19, 2012
In this week's update: Networked lighting emphasized at SALC 2012; Philips Lumileds has two new products; Cooper announces its Navion line of outdoor products.

The keynote session at the Street and Area Lighting conference took a bit of a different route from typical lighting talks when Niels Van Duinen, global marketing director at Philips Lighting focused on Internet Protocol or IP networks as a necessary next step to LEDs in energy efficient lighting. Van Duinen said that while the 50 to 70% energy savings afforded by a transition to solid state lighting was great, it's still not sufficient to meet the sustainability goals of a growing global population. Internet connected lighting could boost the savings beyond 80%. Van Duinen pointed out the growing general trend called the Internet of things where everyday devices such as appliances are connected to the Internet, so adding lighting would be relatively straightforward.

Speaking on networked lighting, Digital Lumens specializes in the technology targeting warehouses, cold storage facilities, and other industrial spaces and was just awarded a patent on its distributed LED control technology. US Patent #8,232,745 is focused on the Intelligent Lighting Systems software embedded in its products. Even though network support adds some cost to the system, Digital Lumens has case studies that show realization of 90% energy savings based on scheduling, light sensors, and light-level control that can actually accelerate payback.

Now let's turn to the packaged LED area. Philips Lumileds just announced two new products. The Luxeon Z features a small 1.7 by 1.3 mm footprint and comes in a package but without a lens or encapsulation. The device allows luminaire makers to easily create multi-chip designs packing the devices closely. Efficacy and lumen output top out at 102 lm/W and 148 lm. The company also announced new members of its high-voltage Luxeon H family. The new devices increase efficacy by 27% over prior products.

In the outdoor luminaire area, Cooper Lighting announced the new Navion line of products that feature a sleek look with functional curves that are part of the thermal management system. Designed for parking lots and roadway lighting, the family tops out with a 22,000 lm model. The standard CCT is 4000 kelvin. That's an increasingly popular choice as it's close to the CCT of moonlight and tests reveal that people see optimally around the 4000 kelvin range as Nancy Clanton discussed during our recent webcast on outdoor lighting.