CULE-20QS-XEG-PCRMCRB

Application

• Non-Directional
• Directional
• Downlights
• Exterior Area
• Landscape
• Architectural
• Entertainment
• Horticulture
• Vehicle

Data Sheets

• XLamp Element G Feature Sheet
• XLamp Element G Data Sheet
• Optimising 4 Channel Led Design with XEG

Note  Cree LED maintains a tolerance of ±7% on flux and power measurements, ±0.005 on chromaticity (CCx, CCy) measurements and a tolerance of ±2 on CRI measurements. See the Measurements section (page 97).

• XLamp XE-G LED order codes specify only a minimum flux bin and not a maximum. Cree LED may ship reels in flux bins higher than the minimum specified by the order code without advance notice. Shipments will always adhere to the chromaticity or DWL bin restrictions specified by the order code.

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Spectral Observations of this Colour Mix

An LED light engine composed of PC Red, Royal Blue, PC Cyan, and Mint LEDs would produce a broad range of light due to the diverse spectral outputs of each LED. Here’s a broad analysis of how these LEDs could interact:

1. PC Red LED: Emitting light in the red region of the spectrum, typically around 620-750 nm, the PC Red LED provides a robust representation in the red part of the spectrum. This is advantageous for various applications, including horticulture, photography, and general illumination.
2. Royal Blue LED: This LED produces light in the blue part of the spectrum, typically around 450-495 nm. The strong blue light is beneficial for a variety of applications such as horticulture, aquarium lighting, and certain mood lighting effects.
3. PC Cyan LED: PC Cyan LEDs are known for their broad spectral output, which covers a range between green and blue in the spectrum, typically around 490-520 nm. This serves to fill the spectral gap between the blue and green regions, providing a more even spectral output across this part of the spectrum.
4. Mint LED: Mint LEDs, unique for their wide spectral output, emit light that spans from the blue-green region (around 490-530 nm) and extends into the yellow-green and occasionally even red regions of the spectrum. The resulting light appears minty or cool white to the human eye.

When these LEDs are combined, they generate a broad spectral output that covers a substantial part of the visible spectrum. The specific appearance of the light will be contingent on the relative intensities of each LED. If all the LEDs share equal intensity, the light may appear white or neutral, with a unique spectral signature.

The inclusion of a PC Cyan LED helps to smooth the transition between the blue and green regions of the spectrum, potentially creating a visually pleasing light. However, without a dedicated green LED, the green part of the spectrum might be less pronounced in the overall output, which could result in the light appearing less green and more blue or cyan.

This mix of LEDs could prove beneficial in certain applications. For instance, in horticulture, red and blue light are crucial for plant growth, while cyan and mint light can promote specific growth traits. For general illumination or mood lighting, this specific mix of colors could create a distinctive ambiance.

However, keep in mind that the actual spectral output will also be influenced by other factors, like the drive current of each LED and any optical components used in the light engine. Also, the precise color appearance to the human eye will depend on the balance of intensities between these LEDs when powered.

Application Examples