skylt & dekor
The Color Rendering Index (CRI) is measuring the ability of a light source to simulate the colors of different objects accurately in comparison with the sunlight.
Although there are critics of the subjective color rendering in practice, the CRI is widely used as a measurement of the quality of the light.
Higher CRI corresponds to etter quality light, in scale from 0 to 100.
Generally LED lamps score above CRI 80, which is higher than many other light sources. LED Lamps with CRI above 90 are used for visual inspection tasks.
The output of light sources is light and heat. The higher the ratio light to heat, the more efficient the lamp.
Today's high efficient LED lights have efficiency of about 50 %, compared to standard incandescent lamp with 2-3% and fluorescent lamps with 15-20% efficiency.
LEDs naturally have directional light, this means that the light is easier to manage with less losses.
That presents an even greater advantage in regards to LED lamps' high efficiency over all other existing light sources.
A: The luminous efficacy is the light output per unit power input. It is measured in lumen per watt (lm/W).
Nowadays commercially available LEDs have efficacy of 130 lm/W for cool white and 107 lm/W for warm white light (CREE XLamp MX-6).
This is much higher compared to incandescent bulb that produces 15 lm/W and fluorescent lamp with 60-70 lm/W.
However, the efficacy of a single LED skylt & dekor should not be mixed with the efficacy of the lamp. Many manufacturers and resellers state the LED Lamp Light Output as sum of the output of the individual LEDs.
This is not correct because there are always losses from light trapped inside the lamp. The efficacy of a LED Light Lamp, also called LED Light Engine, can be increased by better design and using high quality materials.
No, you should consider also the CRI (quality of light) and your individual visual preferences. Some people like the more yellow Warm (Soft) White light that resembles the light from the incandescent lamp.
Other prefer the brighter and more true-color rendering Cool / Daylight white.
When properly installed and well ventilated, LED Lamps will very rarely burn. However, the brightness of the LED light fade over time, so LED Lamp's life is measured by 2 characteristics - how much will it fade after 1,000 hours of exploitation, and when the brightness will reach 70% of the initial value.
Quality LED Lamps are rated at less than 3% light output decrease for the first 1,000 hours, and 30,000 to 50,000 hours for the 70% decrease, which is the standard for commercial lighting applications.
Again, compared to traditional light sources, LED lights are superior regarding lifetime.
LotusLEDLights.com is a Canadian based online store for high quality LED (Light Emitting Diode) Lighting products that are energy efficient and environmentally friendly.
We specialize in providing LED Lights and LED Bulbs that are direct replacement of the energy wasting incandescent and halogen bulbs and the mercury containing fluorescent lamps.
Although there are critics of the subjective color rendering in practice, the CRI is widely used as a measurement of the quality of the light.
Higher CRI corresponds to etter quality light, in scale from 0 to 100.
Generally LED lamps score above CRI 80, which is higher than many other light sources. LED Lamps with CRI above 90 are used for visual inspection tasks.
The output of light sources is light and heat. The higher the ratio light to heat, the more efficient the lamp.
Today's high efficient LED lights have efficiency of about 50 %, compared to standard incandescent lamp with 2-3% and fluorescent lamps with 15-20% efficiency.
LEDs naturally have directional light, this means that the light is easier to manage with less losses.
That presents an even greater advantage in regards to LED lamps' high efficiency over all other existing light sources.
A: The luminous efficacy is the light output per unit power input. It is measured in lumen per watt (lm/W).
Nowadays commercially available LEDs have efficacy of 130 lm/W for cool white and 107 lm/W for warm white light (CREE XLamp MX-6).
This is much higher compared to incandescent bulb that produces 15 lm/W and fluorescent lamp with 60-70 lm/W.
However, the efficacy of a single LED skylt & dekor should not be mixed with the efficacy of the lamp. Many manufacturers and resellers state the LED Lamp Light Output as sum of the output of the individual LEDs.
This is not correct because there are always losses from light trapped inside the lamp. The efficacy of a LED Light Lamp, also called LED Light Engine, can be increased by better design and using high quality materials.
No, you should consider also the CRI (quality of light) and your individual visual preferences. Some people like the more yellow Warm (Soft) White light that resembles the light from the incandescent lamp.
Other prefer the brighter and more true-color rendering Cool / Daylight white.
When properly installed and well ventilated, LED Lamps will very rarely burn. However, the brightness of the LED light fade over time, so LED Lamp's life is measured by 2 characteristics - how much will it fade after 1,000 hours of exploitation, and when the brightness will reach 70% of the initial value.
Quality LED Lamps are rated at less than 3% light output decrease for the first 1,000 hours, and 30,000 to 50,000 hours for the 70% decrease, which is the standard for commercial lighting applications.
Again, compared to traditional light sources, LED lights are superior regarding lifetime.
LotusLEDLights.com is a Canadian based online store for high quality LED (Light Emitting Diode) Lighting products that are energy efficient and environmentally friendly.
We specialize in providing LED Lights and LED Bulbs that are direct replacement of the energy wasting incandescent and halogen bulbs and the mercury containing fluorescent lamps.
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