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An incandescent light bulb has a CRI of 100. [1] High-CRI LED lighting is a light-emitting diode (LED) lighting source that offers a high color rendering index (CRI). CRI is a quantitative measure of a light's ability to reproduce the colors of objects faithfully in comparison with an ideal or natural light source.
One-color light is well suited for traffic lights and signals, exit signs, emergency vehicle lighting, ships' navigation lights, and LED-based Christmas lights Because of their long life, fast switching times, and visibility in broad daylight due to their high output and focus, LEDs have been used in automotive brake lights and turn signals.
An LED street light based on a 901-milliwatt output LED can normally produce the same amount of (or higher) luminance as a traditional light, but requires only half of the power consumption. LED lighting does not typically fail, but instead decreases in output until it needs to be replaced. [ 2 ]
By 1939, the service had expanded, to around 2,500 customers and a small fleet of vans was required for the deliveries. As customer demand grew for replacement wireless sets, Hollingbery renamed the business to Comet Radio Services and began providing a radio rental service. [2] Comet's first retail store was opened in George Street, Hull in ...
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
The F. W. Woolworth Company (often referred to as Woolworth's or simply Woolworth) was a retail company and one of the pioneers of the five-and-dime store.It was among the most successful American and international five-and-dime businesses, setting trends and creating the modern retail model that stores follow worldwide today.
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