Farmers these days no longer have to struggle during winter months when the hours of daylight may be insufficient for plant growth. They can choose to grow with LEDs. Lighting luminaires and fixtures based on light-emitting diode (LED) technology are rapidly becoming the standard for use in indoor farms and other controlled horticultural environments, due to the ability to more precisely customize the spectra of light they emit. The first use of artificial light for plant growing and research was in 1868 by Russian botanist, Andrei Famintsyn. From then indoor farming has become a modern practice.