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2. Halogen lamp - Wikipedia

   en.wikipedia.org/wiki/Halogen_lamp

   The production and importation of directional mains-voltage halogen bulbs was banned on 1 September 2016 and non-directional halogen bulbs followed on 1 September 2018. [6] Australia banned some halogen light bulbs above 10W from September 2021 in favour of eco-halogen bulbs, [ 7 ] later than the planned date of September 2020 [ 8 ] to keep the ...

3. Luminous efficacy - Wikipedia

   en.wikipedia.org/wiki/Luminous_efficacy

   Luminous efficacy can be normalized by the maximum possible luminous efficacy to a dimensionless quantity called luminous efficiency.The distinction between efficacy and efficiency is not always carefully maintained in published sources, so it is not uncommon to see "efficiencies" expressed in lumens per watt, or "efficacies" expressed as a percentage.

4. Lamp rerating - Wikipedia

   en.wikipedia.org/wiki/Lamp_rerating

   Incandescent light bulb#Light output and lifetime, which has much more detail. Halogen lamp#Effect of voltage on performance, for halogen lamps. References This ...

5. 5 Things To Stop Buying in 2025 - AOL

   www.aol.com/finance/5-things-stop-buying-2025...

   Non-Energy-Efficient Light Bulbs. According to Max Avery, a chief business development officer at Syndicately, if you’re still buying incandescent or halogen bulbs, it’s time to switch to LEDs.

6. Phase-out of incandescent light bulbs - Wikipedia

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

   60 W incandescent light bulb with energy efficiency class E Equivalent 42 W halogen incandescent light bulb with efficiency class C Compact fluorescent lamp LED lamp. Various governments have passed legislation to phase out manufacturing or importation of incandescent light bulbs for general lighting in favor of more energy-efficient alternatives.

7. What you need to know about the incandescent light bulb ban - AOL

   www.aol.com/know-incandescent-light-bulb-ban...

   In December 2022, the Department of Energy proposed a rule that would more than double the current minimum light bulb efficiency level, to over 120 lumens per watt for the most common bulbs.