This is a 2MS1T2B2M6QES sub-miniature SPDT (single-pole double-throw) toggle switch with an on-on function manufactured by Dailywell. It has a right angle-pc thru-hole mounting for easy installation, making it great for a variety of applications. This switch is designed to switch or route DC and AC signals, resistive loads, and inductive loads - making it a versatile switch with a wide range of applications. Its environmental specifications are also impressive, with an operating temperature of -25 to +85? and a storage temperature of -40 to +85?. With its durable construction and easy installation, the 2MS1T2B2M6QES from Dailywell is a great choice for any number of applications.