Diseases that vaccines prevent can be. dangerous, or even deadly. Vaccines greatly. reduce the risk of infection by working with. the bodyâs natural defenses to safely develop. immunity to disease. This fact sheet explains. how the body fights infection and how. vaccines work to protect people by. producing immunity.
Low Voltage Transformers. 1  A low voltage transformer literally transforms the standard line voltage in your home or business (120 or 277 volts) to a lower 12 or 24 volts. This lets you safely supply power to popular low voltage lighting systems like recessed can lights, pendant lights, puck lights and outdoor light fixtures. 123.
To ensure that LEDs function properly, the driver converts AC line power (120V or 277V) to the appropriate DC voltage (most commonly 12V DC or 24V DC) or regulates the current (most commonly 350 or 700 milliamps or mA) for your lights. LED light drivers might also include components to make them dimmable.