Compact Fluorescent Lamps (CFLs) are very efficient and are popular in cities but these are toxic. That’s why government is promoting LED (Light Emitting Diode) lights. These are not only safe to dispose as they don’t contain mercury, then are even more efficient than CFLs. But LEDs are not as popular
The interesting company, 3M that made forgetting anything impossible by its small sticky notes is now trying to change the face of interior lighting with a highly-engineered reflector which is capable of spreading the light from a single LED bulb over an incredibly large area. 3M created an interesting technology called ‘Virtual