12V 35A (4s) ON-OFF key switch with blue backlight is designed to switch 12V electrical circuits. Such key switches are used as components of automotive electrical equipment (in cars and trucks, buses and other vehicles). The external lighting switch has two positions and backlight. The operating principle is based on moving the key to one of the positions. To switch to the desired position, you need to apply some force to the key. Installation is carried out without the use of screws on flat panels with a thickness of 0.8 mm to 3 mm. The key is connected using flat terminals or soldering contacts.