SUPER BRIGHT 3 MODES: LED Penlight contains super bright LEDs that emit 500 lumens of light, enough to illuminate your path and small dark spaces. The flashlight offers 3 LED light sources: white/blue/UV, white and blue light for everyday lighting and inspection, and violet (395nm) for spot inspection. The modes can be easily switched by pressing the on/off button. COMPACT AND DURABLE: This LED flashlight has an ultra-compact design, only 10.5 x 1.5 cm long and weighing only 25 grams. It can easily slip into your pocket or bag, convenient to carry on the go. It can be used as a medical flashlight by doctors, nurses, and nursing students to check the mouth, nose, eyes, and ears. It is also suitable for home first aid, nighttime room checks, medical first aid kits, etc. DURABLE CONSTRUCTION: The penlight is made of stainless steel, it won't wear out even after long use, and can withstand drops and impacts. Perfect for work, maintenance, camping, emergency survival, mechanics, nurses,