Industrial lighting includes applications such as office lighting, and warehouse lighting, as well as lighting for schools and hospitals. While buildings such as hospitals, schools, and sports facilities tend to be primarily concerned with providing the appropriate amount of light for the associated task, buildings like warehouses and offices are often more concerned with saving money by maximizing the energy efficiency of the lighting system. The use of LEDs in these areas helps to achieve both goals as LEDs can be easily dimmed to provide the desired light and they can emit light of an intended color without the use of the color filters that traditional lighting methods require. The LM3421/23 Buck-Boost/Boost supports a wide input voltage range of up to 75 V, allowing for a up to 18 LEDs to be connected in series, which has the benefit of reducing overall costs. Also as the MOSFETs are external on the LM3421/23, the device is capable of driving large loads, up to 10 A. Robust fault protection and indication features further protect and extend the lifetime of the LEDs.