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2. 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.

3. LED lamp - Wikipedia

   en.wikipedia.org/wiki/LED_lamp

   A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...

4. 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 circa 2021. Various governments have passed legislation to phase out manufacturing or importation of incandescent light bulbs for general lighting in favor of more energy-efficient ...

5. Haitz's law - Wikipedia

   en.wikipedia.org/wiki/Haitz's_law

   Besides the forecast of exponential development of cost per lumen and amount of light per package, the publication also forecast that the luminous efficacy of LED-based lighting could reach 200 lm/W (lumen per watt) in 2020, crossing 100 lm/W in 2010. This would be the case if enough industrial and government resources were spent for research ...

6. Holiday lighting technology - Wikipedia

   en.wikipedia.org/wiki/Holiday_lighting_technology

   These lights usually come in sets of 140 or 150. This is because to give the chasing effect, bulbs must be arranged in four circuits of 35 (sets of 140) or three circuits of 50 (sets of 150). These light sets use even less power than a regular set of 150, because the lights are not always on, and therefore the bulbs also do not get as hot.

7. 25 of the best Walmart sales of the week: Apple gadgets ... - AOL

   www.aol.com/lifestyle/the-best-walmart-sales-of...

   VIZIO 43” Class Full HD 1080p LED Smart TV (New) VFD43M-0804 $148 $168 Save $20 Upgrade your entertainment experience with this wallet-friendly 43-inch smart TV.