Haikang variable full color double lens day and night automatic switching all-weather clear visua

share water. electricity. Some knowledge of security
Share daily hydropower tips
Hydropower is actually very simple learn to solve the small problems in life
Engineering men who like water and electricity pay close attention to me and learn and improve together.
/@yiqixueshuidian
Please rest assured that we have strictly guaranteed safety during the shooting process and there are absolutely no violations.
hydropower maintenance# hydropower knowledge

[@fafurionsan6520]

夜間位移有殘影問題，有改善的方式嗎?

[@buneng3975]

我给丈人家里就是装的4个这种型号的，晚上是真清楚