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2. 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 ...

3. Xiaomi Smart Home - Wikipedia

   en.wikipedia.org/wiki/Xiaomi_Smart_Home

   Xiaomi launched a smart blood pressure monitor on 24 September 2014, in partnership with iHealth Labs of Silicon Valley, USA. The accompanying app tracks blood pressure, heart rate, average pulse, and other parameters on a real-time chart, then makes recommendations for improvement.

4. Parabolic aluminized reflector - Wikipedia

   en.wikipedia.org/wiki/Parabolic_aluminized_reflector

   LED retrofit equipment that match PAR lamp dimensions is made by some manufacturers. As with the case of LED MR lamps, LED PAR lamps generally use an array of individual LED elements that are unsuitable for reflector operation. Nevertheless, some degree of beam control can be obtained with aperture or lens, and LED PAR 38 replacements with a 40 ...

5. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   To encourage the shift to LED lamps and other high-efficiency lighting, in 2008 the US Department of Energy created the L Prize competition. The Philips Lighting North America LED bulb won the first competition on August 3, 2011, after successfully completing 18 months of intensive field, lab, and product testing. [94]

6. AOL Mail

   mail.aol.com/d?reason=invalid_cred

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Talk:Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Talk:Light-emitting_diode

   And in this case, an LED is subjected to a reverse voltage of √2 x 240 ≈ 339V at its peak, a much higher value than 5V. And I have never seen an LED being damaged for that reason. So, I have been trying to figure why there is such an apparent huge discrepancy between what manufacturers recommend and what reality allows.