“Strong torch” refers to a night lighting tool that uses ultra-high-brightness and high-power white LEDs as the light source. Generally speaking, in total darkness, a torch that can illuminate objects 100 meters away can be seen clearly. It is a “strong torch”. It is a kind of lighting tool produced in response to the needs of small and strong light mobile lighting and signal instructions. It is used in field night work, outdoor sports, night long-distance photography, etc., and has the characteristics of high-temperature resistance, water resistance, fall resistance, and long lighting time.