The Kelvin Color Temperature Scale is a measurement of discriminating colors for the human eye. Color temperatures over 5,000K are called cool colors (blue/white), while lower color temperatures (2,700–3,000 K) are called warm colors (yellow/white through red). This is a measurement for the human eye, but serves as a reference for helping consumers know which lamp to buy for which stage of growth. 3K Lamps SunPulse recommends the 3K lamp for the majority of flowering when growing annual plants. 4K Lamps This is a Full Spectrum light good for all stages of growth. 6.4K Lamps A lamp popularly used for vegetative growth. 10K Lamps This lamp is for use during the last 1-2 weeks of flowering to allow better ripening and finishing.
test2
