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2. Photometry (optics) - Wikipedia

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

   Watts can also be a direct measure of output. In a radiometric sense, an incandescent light bulb is about 80% efficient: 20% of the energy is lost (e.g. by conduction through the lamp base). The remainder is emitted as radiation, mostly in the infrared. Thus, a 60 watt light bulb emits a total radiant flux of about 45 watts.

3. A-series light bulb - Wikipedia

   en.wikipedia.org/wiki/A-series_light_bulb

   The most commonly used A-series light bulb type is an A60 bulb [7] (or its inch-based equivalent, the A19 bulb [2] [4]), which is 60 mm (19 ⁄ 8 in or 2 + 3 ⁄ 8 in) wide at its widest point [3] and approximately 110 mm (4 + 3 ⁄ 8 in) in length. [8] Other sizes with a data sheet in IEC 60064 are A50, A55, A67, A68, A71, A75, and A80.

4. Incandescent light bulb - Wikipedia

   en.wikipedia.org/wiki/Incandescent_light_bulb

   Light bulbs using coiled coil filaments are sometimes referred to as 'double-coil bulbs'. For a 60-watt 120-volt lamp, the uncoiled length of the tungsten filament is usually 580 millimetres (22.8 in), [76] and the filament diameter is 0.046 millimetres (0.0018 in). The advantage of the coiled coil is that evaporation of the tungsten filament ...

5. 3-way lamp - Wikipedia

   en.wikipedia.org/wiki/3-way_lamp

   The contacts of a 3-way bulb Circuit diagram of a 3-way bulb. A 3-way incandescent bulb has two filaments designed to produce different amounts of light. The two filaments can be activated separately or together, giving three different amounts of light. One common 3-way incandescent bulb is the 50/100/150 W.

6. 'He really is the king': How 'Mufasa' lionizes the legendary ...

   www.aol.com/really-king-mufasa-lionizes...

   Mufasa was one of James Earl Jones' most iconic roles, and from the start, Disney's new "Lion King" movie pays tribute to his legacy.

7. Democrats lost working-class voters to Trump ― even in this ...

   www.aol.com/democrats-lost-working-class-voters...

   LYNN, Massachusetts ― Mark Callahan has voted Democratic in nearly every presidential election he can remember. Until this year. Callahan, 67, cast his ballot for President-elect Donald Trump ...

8. When was the first NFL Thanksgiving game? History of ... - AOL

   www.aol.com/first-nfl-thanksgiving-game-history...

   The best books of 2024, according to Goodreads. See all deals. In Other News. Entertainment. Entertainment. Fox News. Jay Leno addresses rumors his facial injuries were related to mob retaliation.

9. Compact fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Compact_fluorescent_lamp

   The lamps use a tube that is curved or folded to fit into the space of an incandescent bulb, and a compact electronic ballast in the base of the lamp. Compared to general-service incandescent lamps giving the same amount of visible light, CFLs use one-fifth to one-third the electric power, and last eight to fifteen times longer.