The GL5510F with Photoresistors Through Hole RoHS is an electronic component manufactured by Jing Chuang. It is a resistive sensor composed of two parts: a light-sensitive photoresistor and an amplifier to detect changes in light intensities and convert them into electrical signals. The device can be used in applications such as automatic light dimmers, exposure meters, and security systems. The component is RoHS compliant, meaning it is free of hazardous materials including lead, mercury, and cadmium, and is available in a through-hole package for easy installation.