Color temperature and color rendering index selection (CCT & CRI Selection Guide)

Color temperature determines the atmosphere, and color rendering determines the quality

Lighting is not only bright, but also beautiful. Queendom provides a full color temperature range from 2700K to 6500K to meet the needs of multiple scene lighting environments from residential to commercial and industrial.

Color temperature application reference:

Color temperature Hue Application scenario

2700K Warm yellow Home, hotel, leisure area

3000K Warm white Restaurant, cafe, clothing store

4000K Neutral white Office, classroom, retail mall

5000K Cool white Medical, factory, exhibition hall

6500K Daylight white Outdoor, warehouse, industrial workshop

Color rendering index (CRI) recommendation:

CRI value Application effect

CRI 70-80 Industrial lighting Cost priority

CRI ≥ 80 Commercial space Natural color

CRI ≥ 90 Art/high-end retail Accurate color reproduction

Provide a variety of high CRI light sources (Ra90~Ra97)

Application of spectrum design in plant lighting (Spectrum Design for Horticulture)

Spectrum is the core language of plant lighting

Plants cannot perceive "brightness", but are very sensitive to specific wavelengths (spectrum). Queendom professional plant LED can cover the PAR spectrum (400~700nm) to meet the growth needs of different crops at different stages.

Reference of plant spectrum structure:

Wavelength Color Function

450nm blue light Promotes vegetative growth (roots, leaves)

660nm red light Promotes flowering and fruiting

730nm far red Breaks dormancy and adjusts light cycle

UV (385~400nm) Ultraviolet Antibacterial, prevents excessive growth

500~600nm green light Penetrates the canopy and coordinates growth

Application scenarios:

Vertical farm: It is recommended to use a high blue + high red ratio + cold white supplementary light

Seedling system: Strengthen blue light to promote root system

Flowering greenhouse: Red light + far red light combination enhances flowering rate