The SMD1206-30 Ambient Light Sensors 1206 RoHS manufactured by Senba are small, surface-mount photometric light sensors that sense visual light from the environment. They are usually used in applications like detecting day and night, controlling backlighting for LCD displays, and measuring brightness or contrast. The SMD1206-30 features a 1206 surface-mount package and has a supply voltage of 2.5-5.5V, a sensing range of 0-30,000 Lux, and a fast response time of 2 ms. The device is RoHS (Restriction of Hazardous Substances) compliant, making it safe for use in all global markets.