First of all, when choosing a point light source LED UV flashlight, you should choose a manufacturer with many years of mature technology and experience in the industry. The quality of the point light source purple light flashlight produced by these brand manufacturers is more guaranteed;

Secondly, as the core of the point light source UV flashlight, UVLED lamp beads are the key. Large factories generally use imported UVLED lamp beads of good quality, which have low light decay, low heat generation, and strong ultraviolet radiation stability.

Once again, the point light source LED UV flashlight should choose a constant current and constant voltage drive power supply, and the UVLED UV flashlight with constant current chip will work more stably and will not cause unstable light emission with the decrease of battery capacity.