Ratio: 5  10  18

IP Grade: IP40

<p style="box-sizing: border-box; margin: 0px; padding: 0px; color: rgb(51, 51, 51); line-height: 30px; font-size: 16px; font-family: " microsoft="" yahei",="" "wenquanyi="" micro="" hei",="" "pingfang="" sc",="" "hiragino="" sans="" gb",="" "heiti="" "helvetica="" neue",="" helvetica,="" arial,="" sans-serif;"="">

Ratio: 5  10  18

IP Grade: IP40

<p style="box-sizing: border-box; margin: 0px; padding: 0px; color: rgb(51, 51, 51); line-height: 30px; font-size: 16px; font-family: " microsoft="" yahei",="" "wenquanyi="" micro="" hei",="" "pingfang="" sc",="" "hiragino="" sans="" gb",="" "heiti="" "helvetica="" neue",="" helvetica,="" arial,="" sans-serif;"="">