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  2. Fluorescent lamp recycling - Wikipedia

    en.wikipedia.org/wiki/Fluorescent_lamp_recycling

    CFLs that use 25 to 40 watts of electricity will have total mercury content capped at 6 mg per unit." [6] Only a few tenths of a milligram of mercury are required to maintain the vapor, but lamps must include more mercury to compensate for the mercury absorbed by internal parts of the lamp, which is no longer available to maintain the arc.

  3. United States lighting energy policy - Wikipedia

    en.wikipedia.org/wiki/United_States_lighting...

    60 lumens per watt for lamps > 40 watts, 50 lumens per watt for lamps > 15 watts and ≤ 40 watts, and; 40 lumens per watt for lamps < 15 watts; There are 14 states that have adopted the 2009 IECC, six have an effective date set for late 2010 early 2011. Within the next three years, approximately 33 states will have adopted and implemented IECC ...

  4. Phase-out of incandescent light bulbs - Wikipedia

    en.wikipedia.org/wiki/Phase-out_of_incandescent...

    The Canadian federal government banned the import and sale of 75- and 100-watt incandescent bulbs, effective 1 January 2014. On 1 January 2015, 40- and 60-watt bulbs were also banned, although there are exceptions for oven lights, decorative lamps (light bulbs), appliance bulbs, 3-way fixtures, chandeliers and rough service/utility bulbs. [84]

  5. Incandescent light bulb - Wikipedia

    en.wikipedia.org/wiki/Incandescent_light_bulb

    40-watt light bulbs with standard E10, E14 and E27 Edison screw base The double-contact bayonet cap on an incandescent bulb. Large lamps may have a screw base or a bayonet base, with one or more contacts on the base. The shell may serve as an electrical contact or only as a mechanical support.

  6. Fluorescent-lamp formats - Wikipedia

    en.wikipedia.org/wiki/Fluorescent-lamp_formats

    In the 1970s, 34-watt energy-saving F40T12 fluorescent lamps were intoroduced in the United States. In the 1980s, T8 32-watt lamps were introduced, [8] but unlike the T8 tubes introduced in Europe, these T8s are not retrofits and require new matching ballasts to drive them. These ballasts were originally magnetic, but most today are electronic.

  7. Photometry (optics) - Wikipedia

    en.wikipedia.org/wiki/Photometry_(optics)

    Although most consumers still think of light in terms of power consumed by the bulb, in the U.S. it has been a trade requirement for several decades that light bulb packaging give the output in lumens. The package of a 60 watt incandescent bulb indicates that it provides about 900 lumens, as does the package of the 15 watt compact fluorescent.