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2. Fluorescent-lamp formats - Wikipedia

   en.wikipedia.org/wiki/Fluorescent-lamp_formats

   Ballast-swap replacement for 3 ft T12 30 W T8: 1.0, 25: 4: 32 F32T8: Ballast-swap replacement for 4 ft T12 40 W T8: 1.0, 25: 8: 59 F96T8: Ballast-swap replacement for 8 ft T12 75 W single-pin T12: 1.5, 38: 4 "25" F40UTSL Retrofit replacement for 4 ft T12 40 W on underpowered residential-grade rapid start magnetic ballasts. These are F40CW lamps ...

3. Compact fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Compact_fluorescent_lamp

   The adapter consists of a regular bulb screw, the ballast itself and a clip for the lamp's connector. Non-integrated bi-pin double-turn CFL with G24d plug-in base An electronic ballast and permanently attached tube in an integrated CFL. CFLs have two main components: a magnetic or electronic ballast and a gas-filled tube (also called bulb or ...

4. Electrical ballast - Wikipedia

   en.wikipedia.org/wiki/Electrical_ballast

   An electronic ballast is usually quieter than a magnetic one, which produces a line-frequency hum by vibration of the core laminations. [4] Electronic ballasts are often based on switched-mode power supply (SMPS) topology, first rectifying the input power and

5. NYT ‘Connections’ Hints and Answers Today, Wednesday, December 11

   www.aol.com/nyt-connections-hints-answers-today...

   today's connections game answers for wednesday, december 11, 2024: 1. utopia: paradise, seventh heaven, shangri-la, xanadu 2. things you shake: hairspray, magic 8 ...

6. Video shows terrifying rockslide in Colorado that forced ...

   www.aol.com/video-shows-terrifying-rockslide...

   A major rockslide prompted two highways to be shut down in Colorado over the weekend and witnesses captured the frightening moment on video. Highways 96 and 165 from Wetmore to Westcliffe in ...

7. Fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Fluorescent_lamp

   The efficacy of fluorescent tubes ranges from about 16 lumens per watt for a 4 watt tube with an ordinary ballast to over 100 lumens per watt [51] with a modern electronic ballast, commonly averaging 50 to 67 lm/W overall. [52] Ballast loss can be about 25% of the lamp power with magnetic ballasts, and around 10% with electronic ballasts.