Table of Contents
- Tapping the full potential of LEDs
- Introducing GLS-OIR-C-CN, our latest innovation for energy-saving occupancy sensors
- Customer Quote
- Greenbuild® Expo
- Crestron Commercial Lighting Controls - Specifiers (CLC-S) Training
- LED Specifier Summit
- Strategies in Light 2014
Tapping the full potential of LEDs
Thanks to their excellent illumination, long life, white light quality, safety, and energy efficiency, most experts agree that LEDs will be the dominant lighting technology moving forward. But, I think designers, architects, and engineers will be surprised to learn how much more LEDs can do for their clients when paired with the right drivers, dimmers, and controls.
MORE Energy Savings
LEDs are infinitely dimmable and controllable, offering even more energy savings. When you utilize dimming and controls, you ensure fixtures emit less heat over time, increasing energy savings and prolonging the lifecycle of LED lamps.
Great primer of LED Lighting Terminology
MORE Intelligent Automation
When LED controls are integrated with sensing controls, the result is a daylight harvesting solution that automatically optimizes light levels throughout the day with no adverse impact on the comfort of users within a space.
MORE Lighting Customization
More is learned everyday about the science and application of adjusting light sources to enhance people’s moods, improve productivity, regulate Circadian rhythms and more. LEDs provide the unprecedented ability to dynamically adjust the temperature (or color) of the light in a space, significantly enhancing the designer’s ability to tune the mood of a room for different times of day.
What to know about LED dimmers, drivers, and controls
Not all dimmers, drivers, and controls are created equal. Here's a little background on the different components:
New 277V dimmers can provide superior in-wall RF dimming of electronic low voltage, LED, incandescent, and halogen light sources in commercial buildings. With wireless dimmers, you can substantially reduce wiring and related labor costs of traditional wired systems, making them perfect for new and retrofit applications. Using the right dimmers helps fill the increasing demand for wireless and flicker-free LED fixture dimming, as well as traditional incandescent and halogen light fixtures allowing specifiers to deliver integrated dimming solutions in voltage options for every type of load in every type of space in any part of the world.
LED Driver Dimming
LEDs dim down easily using either a current dimming or PWM dimming method. But, LEDs are extremely ‘fast’ devices. Any disturbance on the dimming line will be seen as flicker or instability.
Ideally, dimming with LEDs provides incandescent-like performance such smoothly dimming down to the lowest spec possible without “steps” or flickers. Dimmers should also allow for color temperature shifts to enhance ambiance and user comfort.
What is an LED driver and what does it do?
The driver is the “ballast” for an LED system. It transforms the system voltage and the fundamental purpose is to drive the LED array at a specific voltage or current to allow for précised dimming. Proper current/voltage/power is critical for maintaining proper light levels and life of the LED. The driver also regulates power to counter system fluctuations and it allows the isolation of the LED system from the high voltage system to reduce shock hazard and increase safety.
Where is the driver located?
Depending upon the fixture style, a driver may be an integral part of the fixture or mounted nearby or remotely.
Integrated in the light fixture
- Close to the LEDs
- Power wiring to fixture is 120-277 VAC
In the ceiling
- Benefit for small fixtures if no space for driver available
- Approx. 10 ft from the LEDs
- Class 2 wiring to the fixture
- All drivers installed on central location of the building
- Max 300 ft from the LEDs
- Class 2 wiring to the fixture
- Easy maintenance of LED drivers
- Low voltage grid
- DC-DC driver in fixture, and powered from a low voltage grid
LED Driver Control Technologies
LED drivers should be robust enough to work flawlessly with standard controls in the market to make the design of the lighting system easier. Here are the main technologies to be aware of:
- Phase Cut - Typically not available in Commercial LED Drivers
0-10-V - Available, but may have low end cut off at 3-5% depending upon manufacturer
DALI - Available, offers best controlability (such as independently controllable channels for white light tuning) and feedback (for power metering and more)
DMX - Available, best utilized on color changing performance applications
Crestron controls LEDs
At Crestron, we know a lot about lighting control systems and have worked hard to complement our solutions with a range of best-in-class LED drivers and dimmers to help you get the most out of your investment.
The Crestron LED driver family provides high-power LED lighting with deep dimming to below 1%. Available in 50W and 100W models with DALI® or 0-10-V control, Crestron GLD-LED drivers offer superior, smooth dimming technology using a combination of duty-cycle and current dimming. But there are even greater cost-savings possible with DALI LED drivers.
DALI models feature added cost-savings for end users and superior design versatility for lighting specifiers. DALI controlled models are available in versions that allow output channels to be independently controlled for multiple LED sources. The 50W DALI models feature two independently controlled outputs. The 100W DALI models feature two sets of two independently controlled outputs.
For fixtures featuring direct and indirect lighting strategies, independent output channel control capability in a single driver reduces the LED driver requirement by half. It also reduces the cost of installation. And, we open the way for the economical delivery of tunable white light applications without resorting to DMX or more costly and proprietary driver module combinations. Finally, because it’s based on the DALI open standard rather than a proprietary system, you’re not tied to any one vendor.
The future is even brighter with LEDs
By specifying the right drivers and controls, you get more reliability, energy savings, and creative possibilities from your LED lighting design, as well as flexibility for the future.
Introducing GLS-OIR-C-CN, our latest innovation for energy-saving occupancy sensors
The new GLS-OIR-C-CN is a highly accurate occupancy sensor designed to reduce energy costs and enhance the automation capabilities of Crestron lighting and environmental systems.
Powered by Passive Infrared (PIR) technology, GLS-OIR-C-CN sensors are not susceptible to vibrations in the environment, reducing false occupancy activations due to nearby foot traffic, HVAC systems, or other local activity.
These new sensors provide the most cost-effective solution for customers to realize the energy-saving benefits of lighting and environmental automation.
At less than 1-inch high when installed, the GLS-OIR-C-CN is one of the thinnest ceiling-mount sensors on the market. It effortlessly blends into any ceiling helping you deliver enhanced automation systems that keep a low-profile.
Point and shoot configuration
Thanks to the available IR Remote, there’s no need for a laptop or programmer to setup and adjust each sensor. Just aim the remote at the GLS-OIR-C-CN to adjust sensitivity for vacancy and occupancy states, timeout, and Cresnet ID.
Advanced occupancy sensing
Our advanced GLS-ODT-C-CN Occupancy Sensor with dual technology is perfect for a wide range of applications, including fine motion detection in large spaces.
Crestron occupancy sensors bring a new layer of intelligent automation to your customers and improve the energy-saving capabilities of any complete energy management solution from Crestron.
“A technique that can greatly reduce lighting power density, is to apply effective lighting design. An example of this deploys layers of light for ambient, accent, and task. Another concept is to light surfaces versus volumes. The most energy efficient light source for accent, task, and surface lighting is LED, with its beam directionality. In addition, dimmability provides designers with greater lighting control options, further reducing energy usage.”
- Nancy Clanton, PE, FIES, IALD, LC, LEED Fellow, President, Clanton & Associates, Inc.
People & Places
It was really exciting for us to meet so many people at the frontline who are dedicated to sustainable building in their everyday business at Greenbuild. We had some great discussions and really enjoyed learning how many of you are using Crestron as part of your sustainable and energy efficient designs. For those of you that didn’t make it this year, we focused on the importance of a fully integrated building in order to lower operational costs and increase productivity and efficiency for customers. By building on open standards like DALI, Ethernet, and BACnet, Crestron solutions offer customers competitive choices without locking them into costly proprietary systems. We’ll have a full write up next month to share the observations of attendees and visitors to our booth, as well as provide insights from our research and development team on the sessions and seminars.
Crestron Commercial Lighting Controls - Specifiers (CLC-S) Training
This 2-day Level I introductory class provides a general overview of the complete line of Crestron Commercial Lighting Control Systems including centralized, distributed, room, building, and enterprise solutions.
Visit http://www.crestron.com/training to learn more about CLC-S training.
LED Specifier Summit
The LED Specifier Summit was a one-day immersion in LED lighting education and solutions. This event is dedicated to educating specifiers about the latest commercial, architectural and decorative LED lighting solutions and we were excited to be a part of it, presenting the latest in LED drivers, controls, and dimming solutions.
Strategies in Light 2014
We will be showcasing unique lighting control and light driver technology at Strategies in Light 2014 in Santa Clara, CA. We invite attendees to visit us to experience the latest in DALI and LED technologies from dimming and drivers to integration with daylight harvesting, sensing, and complete building control.
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