Buy buy's second-hand flashlight is not recommended because it is impossible to check its use. When it is intuitively judged that the lamp tube is yellow and the two ends are black, the lamp will soon be scrapped. If it is a flashlight used by photographers of wedding companies or enterprises, the callback will obviously slow down after one year. There is nothing wrong with the lamp. I still can't feel it without using this new lamp.

If you insist on buying second-hand flashlights, there are simple ways. 1, that is, look at the wear marks of hot boots. It doesn't matter if there are scratches, but there is obvious wear and tear, indicating that it is used very frequently. 2, try to flash, flash back to good electricity, for objects about two meters trigger three or four times before starting to call back, indicating that this lamp is used less. The quality of the battery will affect the number of flashes.