5,000 inferior exports of returned LED lights were destroyed under the supervision of Shunde law enforcement officers. On June 13, the author learned from the Shunde Inspection and Quarantine Bureau that recently, when the department conducted on-site inspection of imported goods, it detected a large number of LED lights with serious quality and safety problems. In further investigation, it was found that the LED lights of the batch were inferior. Export returned products are pretending to be imported as qualified products. Accordingly, at present, the batch of inferior LED lamps have been completely destroyed under the supervision of the staff of Shunde Inspection and Quarantine Bureau, and the importing enterprises have also been subject to administrative punishment for violation of relevant laws and regulations of China.
According to reports, at the beginning of this year, a company in Shunde declared a batch of LED lights in Guangzhou, the total number is 5,000. After the goods arrived in Shunde, the staff of Shunde Inspection and Quarantine Bureau carried out on-site inspection of the batch of LED lights, and found that the batch of LED lights were exported and returned products, and most of the plastic lamp holders and lamp holders had fallen off, which had no use value.
"If normal transportation, it will not cause damage to the lamp holder and the lamp cap." In response to this situation, the inspection and quarantine personnel immediately alerted. After inspection by the authoritative organization, it was found that except for the fact that most LED lamps have the lamp holder and the lamp cap falling off and cannot meet the basic conditions of use, the LED lamps are not tested in electrical strength, marking, EMC, luminous flux and other items. Qualified, does not meet the standard requirements, the indentation of the lamp holder plastic in the ball pressure test far exceeds the standard requirements, does not have the flame retardant function, and has serious quality and safety hazards.
Application-Specific Integrated Circuit refers to an integrated circuit specifically designed to perform a specific computing task. It is very common to use ASIC for mining in the field of blockchain. This article will analyze the principle of ASIC mining and why it should be anti-ASIC.
For Bitcoin, mining has gone through four stages: CPU, GPU, FPGA and ASIC. GPU is naturally suitable for parallel simple operations, so the execution of SHA256 is much higher than the CPU. FPGA is a programmable hardware, because it has a certain degree of universality, so the unit price will be relatively expensive. ASIC has a large initial design investment, but the unit price will be cheaper after mass production. Therefore, if you can determine that the market size is relatively large, the use of ASIC technology will be the most cost-effective.
This is the basic principle of ASIC.
In a nutshell, mining is running complicated calculations in the search for a specific number. Whether it`s an ASIC miner or a GPU mining rig, mining hardware must run through many calculations before finding that number. In proof of work systems like Bitcoin, the first one to find that number gets a reward - at the time of writing, 12.5 Bitcoins worth around $96,850. That reward will fall to 6.25 Bitcoins in May 2020.
There are so many people and powerful computing systems trying to mine Bitcoin that miner groups form to find that number and share the profit. Even more, the faster your hardware, the more you earn. That`s why people who can afford it opt for ASIC miners because it gives them the greatest chance of earning cryptocurrency in exchange for their investment.
Each cryptocurrency has its own cryptographic hash algorithm, and ASIC miners are designed to mine using that specific algorithm. Bitcoin ASIC miners are actually designed to calculate the SHA-256 hash algorithm. In the case of Litecoin, it uses Scrypt. That means technically they could mine any other coin that`s based on the same algorithm, though typically, people who buy ASIC hardware designed for Bitcoin mine that specific digital currency.
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