1. When purchasing fire emergency lights, we should pay attention to the products of regular manufacturers. In order to reduce the cost, some counterfeit products mostly use inferior components, which will break down frequently in a short time, causing undue losses to consumers. Pick it up and shake it a few times during selection, and check whether the fixed parts of the internal storage bottle and power transformer are firm. If there is a sound inside, it indicates that the internal components are loose, otherwise, it indicates that they are well fixed.

2、檢查功能開關是否正常。將開關置于雙熒光燈檔位.這時兩支燈管應立即同時點亮，且亮度一致而無閃爍現象。把耳朵貼在燈殼上，仔細聽一下內部的升壓變壓器是否有漏電現象，如果有漏電現象，升壓變壓器會產生“滋滋”的響聲。

2. Check whether the function switch is normal. Place the switch in the dual fluorescent position At this time, the two lamps shall be lit at the same time immediately, and the brightness shall be consistent without flickering. Stick your ear to the lamp shell and listen carefully to whether the internal step-up transformer has leakage. If there is leakage, the step-up transformer will make a "Zizi" sound.

3、接通電源，充電指示燈應點亮，聽聽內部電源變壓器是否有因鐵芯松動而產生的“嗡嗡”聲。

3. When the power is turned on, the charging indicator light should be on to listen to whether the internal power transformer has a "buzzing" sound caused by loose iron core.

4、使用應急燈要注意，燈光發暗、熒光燈啟動困難時應立即進行充電，一次充電約需14個小時。長期不用時，應3個月充一次電，時間約為8小時。

4. Pay attention to the use of emergency lights. When the lights are dim and the fluorescent lights are difficult to start, they should be charged immediately. One charge takes about 14 hours. When it is not used for a long time, it should be charged once every 3 months for about 8 hours.

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