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2. Unnat Jyoti by Affordable LEDs for All - Wikipedia

   en.wikipedia.org/wiki/Unnat_Jyoti_by_Affordable...

   Unnat Jyoti by Affordable LEDs for All (UJALA) [2] was a project to distribute efficient LED lighting, launched by Prime Minister of India Narendra Modi on 5 Jan 2015. [3] [4] The project is spearheaded by the Energy Efficiency Services Limited. [5] In non-subsidized LED lamp distribution projects, this program is considered the world's largest.

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. 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 ...

5. 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 ...

6. 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. The lower heat output of LEDs also reduces demand on air conditioning systems.

7. Surya Roshni - Wikipedia

   en.wikipedia.org/wiki/Surya_Roshni

   Surya Roshni Limited (formerly Prakash Surya Roshni Limited) is an Indian multinational company headquartered in Delhi that produces fans, [4] steel, lighting, LED, [5] [6] kitchen appliances [7] and PVC pipes. Surya exports its products over 44 countries [8] and is one of the top manufacturers of LED lights in India. [9]