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If the battery is buried too shallow and the climate is cold in winter, the battery will be frostbitten when it freezes, resulting in insufficient discharge. Usually in cold areas, the battery should be buried at least 1 meter deep, with 20 cm of sand on the bottom, which is conducive to the distribution of water and prolongs the service life of the battery.
October 16, 2024
On April 22, network activity named "FAST 2015 -! OPEN DAY" was launched by a brand LED high-power outdoor lighting manufacturer- Shenzhen Lead Optoelectronics Technology Co., Ltd.(Chinese name is...
Recently, the world's leading watch brand Hublot and brand ambassador, legendary track and field athlete Usain Bolt hand in hand into Kyoto, the ancient capital of Japan, with passion to ignite...
This article is reproduced, does not represent the world position of million table.
After two years of breakthrough in the laboratory's light efficiency of 200 lm/W, Cree has finally produced the series of LED chips with 200 lumens per watt at the end of 2012, and officially...
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October 16, 2024
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