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  2. Best Amazon Fire TV set Prime Big Deal Day offers - AOL

    www.aol.com/amazon-fire-tv-omni-launches...

    Amazon Fire TV 50", 4-series 4K UHD smart TV Was £499.99, now £299.99 SAVE 30% • Amazon Fire TV 43", 4-series 4K UHD smart TV Was £429.99, ... 20 of the best Walmart deal to shop this ...

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    Walmart's Presidents' Day sale includes a best-selling 10-piece ... TCL 43" Class 4-Series 4K UHD HDR Smart Roku TV. ... See at Walmart. VIZIO 65" Class V-Series 4K UHD LED Smart TV. $348 $509 ...

  4. Banker's lamp - Wikipedia

    en.wikipedia.org/wiki/Banker's_Lamp

    The banker's lamp is a style of electric desk or table lamp often characterized by a brass stand, green glass lamp shade, and pull-chain switch. Such a lamp was first patented in the United States under the Emeralite brand name.

  5. Electrical ballast - Wikipedia

    en.wikipedia.org/wiki/Electrical_ballast

    The ballast in such systems can equally be a resistor. A number of fluorescent lamp fittings used a filament lamp as the ballast in the late 1950s through to the 1960s. Special lamps were manufactured that were rated at 170 volts and 120 watts. The lamp had a thermal starter built into the 4 pin base.

  6. Lighting - Wikipedia

    en.wikipedia.org/wiki/Lighting

    LED lamps provide significant energy savings over incandescent and fluorescent lamps. [59] According to the Energy Saving Trust, LED lamps use only 10% power compared to a standard incandescent bulb, where compact fluorescent lamps use 20% and energy saving halogen lamps 70%. The lifetime is also much longer — up to 50,000 hours.

  7. Incandescent light bulb - Wikipedia

    en.wikipedia.org/wiki/Incandescent_light_bulb

    A 50-hour-life projection bulb, for instance, is designed to operate only 50 °C (122 °F) below that melting point. Such a lamp may achieve up to 22 lumens per watt, compared with 17.5 for a 750-hour general service lamp. [76] Lamps of the same power rating but designed for different voltages have different luminous efficacy.

  8. Nachiarkoil lamp - Wikipedia

    en.wikipedia.org/wiki/Nachiarkoil_Lamp

    The Nachiarkoil lamp is made both in bell metal and brass; brass is more in vogue now since it is easily available and cheaper. The lamp has four components which are: parts—base "Keezhbagam (base plate), "kandam" meaning pivotal post, "Thanguli" a bowl with five groves to hold wicks and oil for lighting, and the "Prabhai" which is the crown.

  9. Parabolic aluminized reflector - Wikipedia

    en.wikipedia.org/wiki/Parabolic_aluminized_reflector

    The size of a round PAR lamp is expressed as the nominal diameter of the mouth of the reflector, in eighths of an inch—so the approximate nominal lamp bell diameter in inches can be found by dividing the PAR size by 8. A PAR56, for example, is 56 eighths of an inch (7 inches) in diameter; a PAR36 is 36 eighths (4.5 inches) in diameter, and so on.

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