Posted on April 17, 2013 Category: Lighting Terms
Lighting Terms
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Incandescent bulbs are rated by wattage, a measure of how much power is consumed. This is because incandescent design involves a specific correlation between the power input and the light output. LEDs, on the other hand, can output the same amount of light with a reduction of up to 90% in the power consumed. For [...]
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What is Scrambled Pulse Width Modulation (S-PWM)? S-PWM is an enhanced version of normal PWM signaling. This new technology has been patented in several countries due to its innovation and ability to reduce appearance of flickering in high level recording. How does it work? The duty cycle of each period is split or “scrambled” into several sub-pulses [...]
Posted on January 3, 2013 Category: Lighting Terms
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What is Pulse Width Modulation (PWM) and when is it used? PWM is a method of controlling power to devices. LED lights cannot accept analog signals, so PWM is a common method of dimming LED lighting. Pulses are sent to the light of on and off periods that visually even out to appear as a steady [...]
Posted on January 3, 2013 Category: Lighting Terms
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What is white tunable lighting? White tunable, also known as color tunable, lighting is white lighting that can be adjusted across a range of color temperatures. See the “Color Temperature” page for more information about the definitions of white light terms. How is it possible to change the color temperature of a white light? In strip lighting, diodes [...]
Posted on January 3, 2013 Category: Lighting Terms
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Color Rendering Index (CRI) is the measurement of how faithfully a light source reveals the colors of objects. The index range is from 0 to 100. The higher the CRI, the better the color accuracy. CRI is an important lighting feature for skin tones, decorating, merchandising and more. For example, lighting used in a grocery or [...]
Posted on June 27, 2012 Category: Lighting Terms
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Color temperature is the degree of warmness or coolness of a light source, measured in kelvins (°K). Warm light is in the lower temperatures (2,700-3,000°K) and can appear yellowish, similar to a standard incandescent bulb. Cool light is in the higher temperatures (4,000-6,500°K) can appear more bluish. The color temperature is the color of the light [...]
Posted on June 27, 2012 Category: Lighting Terms
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A bulb is referred to by one or two letters (indicating the shape) followed by a number (indicating the diameter) in eights of an inch. The standard light bulb shape you first think of is an “A19 Bulb” shape. It is in the A family shape and it has a diameter of 19/8 inch, or [...]
Posted on June 24, 2012 Category: Lighting Terms
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Making the decision to switch to LEDs is the easy part, choosing your replacement bulb may not be. The first thing to determine is what type of base you need to fit into the socket. The Standard “Medium” base is an E26. E stands for Edison and the number is the diameter in millimeters. Chandeliers [...]
Posted on June 24, 2012 Category: Lighting Terms
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