The colour of these lamps is mainly red, with orange, red and yellow tones that produce certain effects on plants, such as: production of more flower buds, massive flowering, fattening of flowers, etc. Within this group there are some lamps whose spectrum also includes more bluish tones and are well known in horticulture (Solux Green Force, pHilips Son-t Agro, Sylvana Grolux and pHilips Master Son-T Pia Green Power). The star products of the sector are the SOLUX lamps, which have proven their effectiveness and performance, and are the most widely used by professionals.