PHT trading SA, a company established in the Swiss town of Corteglia, designs and produces quality LED-grow lights under the name Phytolite. The Phytolite LED-grow lights have a surprisingly attractive price/quality ratio. The knowledge, as a basis for these quality lights, was obtained over a period of many years of (and still ongoing) collaboration with professional horticulture businesses in Switzerland and Italy, among others. With their LED-products, PHT trading SA focuses on professional customers, scientific researchers, companies that develop 'green' buildings, as well as on amateur and hobby farmers. The brand Phytolite includes the LED grow light series Clorofilla Cree 3070, GX Professional and the NX 2-Line. Each of the lights in these series are renowned products.