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2. A-series light bulb - Wikipedia

   en.wikipedia.org/wiki/A-series_light_bulb

   Other sizes with a data sheet in IEC 60064 are A50, A55, A67, A68, A71, A75, and A80. Another common A-series light bulb type is the A15 bulb which is commonly used in the US for appliances and ceiling fans. The A15 bulb is 15 ⁄ 8 in (1 + 7 ⁄ 8 in; 48 mm) wide at its widest point and 3.39 inches tall.

3. Fluorescent-lamp formats - Wikipedia

   en.wikipedia.org/wiki/Fluorescent-lamp_formats

   These lamps are used for fluorescence effects where less visible light is ideal. 09 N/A Sun-tanning lamps: These lamps produce wide or narrow band UV-B radiation 10 BL Black-Light lamps: Black light lamps give off long-wave UV-A radiation of around 350-400 nm. They are often used to attract insects to traps.

4. 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.

5. The 30 Best 'Cool' Gifts for Teens in 2022

   www.aol.com/lifestyle/best-gifts-for-teens...

   Updated December 12, 2022 at 2:40 PM. From high-tech to DIY, we've gathered the best gifts for the tweens and teens in your life. ... This cool BD-1 measures over 12.5 inches tall when built ...

6. Electric light - Wikipedia

   en.wikipedia.org/wiki/Electric_light

   For LEDs, lamp life is defined as the operation time at which 50% of lamps have experienced a 70% decrease in light output. In the 1900s the Phoebus cartel formed in an attempt to reduce the life of electric light bulbs, an example of planned obsolescence. [37] [38] Some types of lamp are also sensitive to switching cycles.

7. Shop the best New Year's Amazon deals for big savings on ...

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   End 2024 on a high note by scoring low prices on brands like KitchenAid, Adidas and iRobot. ... Amazon 40-Inch Fire TV. $150 $250 Save $100 | Lowest price ever. ... 15 cozy winter sweaters for ...