Litecoin is an online currency based on peer-to-peer technology and is an open source software project under the MIT/X11 license. It can help users make instant payments to anyone in the world [2]. Litecoin was designed and programmed by a programmer (Li Qiwei) who used to work at Google, and launched on January 9, 2011. Litecoin is an improved digital currency inspired by Bitcoin. The technical principle of Litecoin is the same as that of Bitcoin. It also adopts a decentralized architecture, without any central authority control, and the issuance of new coins and the transfer of transactions and payments are based on open source encryption algorithms, etc. These are all imitated the design principle of Bitcoin. However, Litecoin tries its best to improve the shortcomings that Bitcoin has shown before, such as too slow transaction confirmation, small total cap, the emergence of large mining pools caused by proof-of-work mechanism and so on, SHA256 algorithm [1].
Litecoin, which aims to improve Bitcoin, has three significant differences. First, the Litecoin network can process a block every 2.5 minutes instead of 10, thus providing faster transaction confirmation. Second, the Litecoin network is expected to produce 84 million litecoins, four times the amount of money issued on the Bitcoin network. Each litecoin is divided into 100 million smaller units, defined by eight decimal places.
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The total output power of the new lighting range is from 80 milliwatts (minimum) to 170 milliwatts (typical). Depending on the test conditions or when LF = 350 mA, the peak wavelength of the emission is typically 635 nm and the half width of the spectrum is 40 nm.
Opto Diode also said that the high-output red LED is sealed in the TO5 of the three wires. At a maximum absolute temperature of 25 degrees Celsius, the continuous forward rated current is 500 mA and the reverse voltage is 10V.
The soldering temperature of 260 degrees Celsius makes the design of the LED simpler and easier to install in new and/or existing lighting systems. Storage and operating temperatures range from -55 degrees Celsius to 100 degrees Celsius with a maximum junction temperature of 115 degrees Celsius. 
Bitmain Antminer L3+ (504Mh),Bitmain Antminer L3+ (600Mh),etc.
According to Opto Diode Corporation, a global supplier of advanced, high-reliability photodiodes, visible and infrared lamps announced that a new OD-624L high-output red LED has been introduced, the second being launched by Opto Diode. It is a high-output LED product with an emission wavelength of 624 nm (typical) and a narrow beam angle for applications in fluorescent medical, scientific test instruments and forensics.