A light source consisting of a long glass tube containing mercury in a partial vacuum. Available in many lengths and several diameters, the tube is lined with a fluorescent phosphor. When the ...

Walk through a store or schools, and there's a chance the overhead lighting will come from long fluorescent tubes. Minnesota is taking steps to phase out those bulbs that experts say are harmful ...

Compact fluorescent lamps (aka bulbs) are just smaller versions of the long fluorescent tubes you see in retail stores and warehouses. (Lighting experts and electricians often say "lamps" instead ...

halogen and CFL fluorescent bulbs. LEDs draw considerably less power and are up to 80% more efficient. Although claims are made for some bulbs lasting 25 years, one should expect a long lifespan ...