This light source offers incredible output power stability of better than 0.005dB, utilizing advanced automatic power control (APC) and automatic temperature control (ATC) technologies to ensure excellent wavelength stability. It supports 1 to 4 independently adjustable light source channels, with each channel offering tunable output power. Compatible with DFB, FP, and LED laser types, this fiber optic testing instrument is ideal for a wide range of applications, including optical component testing, device aging experiments, monitoring, fiber sensing, and optical transmission in manufacturing, research, and academic environments.