CULE-20QS-XEG-Green 525nm

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 Green LEDs (530 nm)

Wavelength Range

Green LEDs emit light at 530 nm, which lies in the central green portion of the visible spectrum. This wavelength is particularly important due to its high visibility to the human eye, making it ideal for general illumination and visual signalling applications.

Colour Perception

Green light at 530 nm is perceived as a vibrant and bright green. It is one of the most visible colours to the human eye, offering high brightness and excellent contrast with other wavelengths, such as blue and red.

Spectral Output

Green LEDs have a narrow spectral output concentrated around 530 nm, ensuring a pure and consistent green hue. This specific wavelength is suitable for applications requiring precise spectral tuning, including:

•Traffic signals and indicators

•Backlighting in displays

•Medical and scientific instrumentation

Energy Efficiency

Green LEDs are highly efficient due to their position in the visible spectrum, where the human eye is most sensitive. This allows for lower energy consumption while maintaining high brightness.

Applications in Photosynthesis

Green LEDs at 530 nm can penetrate deeper into plant canopies compared to blue or red light, stimulating photosynthesis in lower leaves. While less efficient for photosynthesis than blue or red wavelengths, green light complements a balanced horticultural lighting system by enhancing overall plant development.

Fluorescence Excitation

Green LEDs are used in fluorescence microscopy and other analytical methods to excite specific fluorophores, often in combination with other wavelengths, enabling diverse scientific applications.

Colour Rendering

530 nm green light is a key component in RGB lighting systems, contributing to the creation of a wide colour gamut. It provides excellent colour contrast and improves the overall brightness of multi-colour setups.

Thermal Management

Green LEDs at higher power outputs require effective thermal management to dissipate heat and ensure stable performance. Proper cooling systems are critical for maintaining their brightness and lifespan.

Visual Aesthetics

Green LEDs at 530 nm produce a sharp and eye-catching hue, making them ideal for:

•Architectural lighting: Highlighting greenery or creating natural colour schemes

•Entertainment lighting: Adding vivid green tones to stage or event lighting

•Signage and displays: Enhancing clarity and contrast in digital or static displays

Specialised Uses

•Medical Applications: Used in medical imaging and diagnostics for their spectral precision.

•Traffic and Signalling: Common in traffic lights, control panels, and emergency signals due to their visibility.

•Aquarium Lighting: Complements other wavelengths to simulate natural underwater lighting.

Summary

A light engine composed of 530 nm Green LEDs provides bright, consistent illumination, making it suitable for applications such as:

•Horticultural lighting

•Architectural and decorative lighting

•Signage, displays, and traffic signals

•Medical and scientific instrumentation

The efficiency and versatility of green LEDs at 530 nm ensure their importance in industries requiring vibrant, energy-efficient, and high-visibility lighting solutions. Their spectral properties enhance functionality and aesthetics across various applications.

Application Examples