ams OSRAM has extended its OSLON Optimal family of horticultural lighting LEDs with a new 640 nm Red LED, which enables indoor farmers to produce faster and healthier plant growth. Providing broader coverage of the red portion of the spectrum, the new 640 nm Red LED joins the 660 nm Hyper Red and 730 nm Far Red in the OSLON Optimal family, which also includes a 450 nm Deep Blue LED and a horti white LED. It has been common practice in horticulture to illuminate crops with a mix of 660 nm, ...