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.
Now choosing lights: A typical well built LED downlight provide 80-110 Lumens per watt, letâs consider 100 lumens. So we need total of 20W LED light to get 2000 lumens and 150 Lux for our sample bed room. That means number of LED lights = 20w( total light)/5W(single light) = 4. If you consider florescent tube or CFLs, they provide 60 lumens per watt, but in all directions. So you need more than 35W to get sufficient lighting.