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2. LED lamp - Wikipedia

   en.wikipedia.org/wiki/LED_lamp

   In 2016 Government of India launched 'Ujala LED bulb scheme' to lower India's carbon footprint and save electricity, it distributed 370 million LED bulbs free, by doing so as of March 2022, which resulted in saving of ₹ 200 billion (US$2.3 billion) of middle class and poor household power bill. The scheme is intended to replace all the ...

3. SMD LED - Wikipedia

   en.wikipedia.org/wiki/SMD_LED

   The light from white LED lamps and LED strip lights is usually provided by industry standard surface-mounted device LEDs (SMD LEDs). [2] Non-SMD types of LED lighting also exist, such as COB (chip on board) and MCOB (multi-COB). Surface-mounted device LED modules are described by the dimensions of the LED package. A single multicolor module may ...

4. 3-way lamp - Wikipedia

   en.wikipedia.org/wiki/3-way_lamp

   Lamp bulbs with dual carbon filaments were built as early as 1902 to allow adjustable lighting levels. [1] Certain compact fluorescent lamp bulbs are designed to replace 3-way incandescent bulbs, [2] and have an extra contact and circuitry to dim to a similar light level. In recent years, LED 3-way bulbs have become available as well. [3]

5. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   As of 2011, some LED bulbs provide up to 150 lm/W and even inexpensive low-end models typically exceed 50 lm/W, so that a 6-watt LED could achieve the same results as a standard 40-watt incandescent bulb.

6. Phase-out of incandescent light bulbs - Wikipedia

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

   While not a complete ban, the UJALA plan in India sought to replace 770 million incandescent light bulbs with LED bulbs by 2019. This was expected to reduce energy consumption by over 100 billion kWh annually and reduce annual electricity bills by ₹ 400 billion (US$4.6 billion).

7. Electric light - Wikipedia

   en.wikipedia.org/wiki/Electric_light

   This is an accepted version of this page This is the latest accepted revision, reviewed on 24 January 2025. Device for producing light from electricity For other uses, see Electric light (disambiguation). "Electric lamp" and "Light bulb" redirect here. For the furniture, see light fixture. For the album, see Lightbulbs (album). For the film originally titled "Lightbulb", see Ingenious (2009 ...