Join us at the LIGHTFAIR International Conference in Philadelphia

Opulent North America is excited to be going to the LIGHTFAIR International Conference in Philadelphia May 7-11, 2017.  Join us there to hear about our product offerings, company growth and new partnerships. Don’t miss the opportunity to be a part of the world’s largest annual architectural and commercial lighting and trade show conference.

Visit the Opulent Americas Team at Strategies in Light + The LED Show

The Opulent Americas team will be in Anaheim, CA for the Strategies in Light + LED Show that is taking place February 28 – March 2. Strategies in Light + the LED Show provide an event experience for professionals representing the entire spectrum of the lighting process. Look us up if you will be there or email to set up a meeting. See you there!

Cree Ramps Performance in Red LEDs for Horticultural Lighting Applications

The pace of packaged LED and solid-state lighting (SSL) product announcements has certainly escalated of late, coincident with the more widespread usage of the technology in greenhouses and vertical, urban farms. Cree began the summer announcing its Photo Red packaged LED for horticultural applications and now just four months later has said that performance has increased by 21% in both the new XLamp XQ-E and XP-E High Efficiency (HE) LEDs. The improvement will enable horticultural lighting manufacturers to reduce the size of luminaires and/or cut system cost.

The Photo Red LEDs are intended to optimize the plant photosynthesis process by emitting light in the 660-nm energy band, a spectrum known for increasing chlorophyll absorption as we covered in a feature article on horticulture. More recently, horticultural experts have evolved the knowledge base to identify other spectra that are also important to various plant types.

The company is characterizing the LED performance using the Photosynthetic Photon Flux (PPF) metric. Metrics such as lumens and efficacy that target the sensitivity of the human eye have little or no significance in terms of the effectiveness of LED lighting on plant growth. The PPF metric is based on the total photons produced in the plant PAR (Photosynthetically Active Radiation) region from 400–700 nm, although other new horticultural metrics will include an even wider region from 280–800 nm or the plant biologically active radiation (PBAR) band.

Read More: Cree Ramps Performance in Red LEDs for Horticultural Lighting Applications

The Changing Landscape that is LED Lighting

In the ever changing landscape that is LED lighting, it can be rather difficult for a company to keep up with all the technological and regulatory changes. Everyone likes an easy solution to a problem and when you look at all the options that are available, it does not appear easy by any stretch of the imagination.

The higher efficiency LEDs in the mid-power segment can show great potential for all types of fixtures; and the high power devices can show lower system cost with a smaller footprint. As with any choice there are a number of tradeoffs to these two types of SMD (surface mount device) solutions.

So how can it be easy with all these options, when you just need a simple, elegant solution? This is when higher density devices like COBs start getting discussed. It is very tempting to consider this type of device for all of your manufacturing and production needs. So why not? They are “easy” to handle, they are “easy” for manufacturing, and they are “easy” to meet regulatory certifications. They just make life “easy”.

You might have someone selling you on this ease of process or how easy LED design can be. The reality is that these components are not “easy”, and there are a number of concerns that should be considered.

If you do choose to look at a COB, you may want to start by looking at thermal performance. Most derating curves for this product show a significant decline in performance once temperatures exceed 85c at 25c ambient. The catch is always the ambient… even in the driver world the ambient rise will cause your Tc to rise thus exceeding your initial calculations for lifetime and performance.

Read More: The Changing Landscape that is LED Lighting