The video focuses on the LTC3966, serial-programmable I2C LED driver IC. This quad monolithic LED driver controls four large strings of LEDs through I2C serial communications. One market for this type of LED driver is the horticultural lighting market. Different colors of LEDs (RGBW or more specific combination of horticultural LEDs RRGB) can be mixed and dimmed with the four different channels, depending upon time of day, time of year, or other vegetation conditions.