Education

01/28/2016

RBW

Dimming Basics

What used to be a fairly straight forward proposition dimming incandescent fixtures has been made more complicated by the fact that the new LED technology is different about how it is dimmed.

Education

01/28/2016

RBW

Choosing Color Temperature

LED lighting offers many benefits and features that were difficult, if not impossible to offer with other lighting technologies. Many of the obvious benefits, such as substantial operating energy and cost reductions, longer life, and lower overall heat generation are generally well known. Another feature that allows for dramatic appearance and productivity benefits now and in the future, involves the color temperature of the light produced by LEDs.

Education

02/25/2015

RBW

AC LED - What you need to know.

AC LED technology and light engines connecting directly to high voltage AC power infrastructures which provide a both lower maintenance, and ease of dimmablity.

Education

12/11/2014

RBW

Dimming: Perceived Value vs. Measured Value

Although many LED lights offer a dimmable range, (such as 100% to 0%) there is a difference between the measured value of light and the perceived value of light. For instance, an LED light that is dimmed to a measured value of 10% will be perceived by the human eye as a value of 31%. This difference is important to keep in mind when buying and specifying LED lights and dimmers.

Education

12/03/2014

RBW

Leading Edge vs. Trailing Edge Dimming

Leading Edge Dimming (TRIAC dimming) utilizes a current that is turned off as the AC waveform begins, right after it crosses zero. Leading Edge Dimming is typically used with incandescent bulbs, and produces a rush of voltage every half cycle, resulting in a rush of current to the light source.

Education

11/26/2014

RBW

Types of LED Dimming

TRIAC dimming relies on adjustable timing of power at the start of each AC half cycle, which alters the voltage waveform to dim a light source. TRIAC dimming is almost instantaneous and wastes very little power. 0-10 V dimming utilizes a DC voltage that varies from 0 V to 10 V to dim a light source. 0-10 V dimming typically runs at a low current with little voltage drop.

Education

11/20/2014

RBW

Watts vs. Lumens

Although the Watt is a very common unit of measurement for light sources, it does not actually measure how much light a source gives off. Watts measure how much energy is required to power a light source, whereas Lumens measure the ammount of light emitted by a light source. The more you know!

Education

11/19/2014

RBW

Energy Efficiency and CRI

CRI, or Color Rendering Index, is a measure of how accurately a light source is able to reveal the intrinsic colors of what it is illuminating. Established in the 1960s, CRI is an extremely important measurement for assessing the color performance of a light source.