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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 ...
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 ...
For each half-cycle, part of the LED emits light and part is dark, and this is reversed during the next half-cycle. The efficiency of this type of HP-LED is typically 40 lm/W. [54] A large number of LED elements in series may be able to operate directly from line voltage. In 2009, Seoul Semiconductor released a high DC voltage LED, named ...
Serial number of a laptop computer. In smartphones, serial numbers are extended to the integrated components in addition to the electronic device as a whole, also known as serialization. This gives unique individual parts such as the screen, battery, chip and camera a separate serial number. This is queried by the software for proper release ...
Is it possible to live comfortably in retirement on Social Security income alone? Yes and no. Alden and Dena Swartz draw nearly $4,000 a month from Social Security, the government program designed ...
Used in some lighted watches and some LED decorator lights (electronic tea candles). CR1220: 5012LC: 35–40: 0.1 (CR) 0.03 (BR) 12.5 × 2.0 Used in keychain LED flashlights, and in some digital cameras to keep the time and date function running even when the main battery is taken out of the camera. [146] [147] CR1225: 5020LC: 50: 0.2: 12.5 × 2.5
This $29 'it bag' from Amazon rivals a popular Coach purse style that costs 10x more
Since 2000, binge drinking has fallen from 30% to 9% in 12th grade, from 24% to 5% in 10th grade and from 12% to 2% in 8th grade. Getty Teens drinking beer (stock image)