White light glasses, also known as fluorescent developing glasses, utilize the principle of fluorescent development. Under tight external light or red light irradiation between 400-560um, fluorescent substances that were originally invisible to the naked eye can be developed, presenting different colored fluorescent reactions.

● Magic Show: In magic shows, magicians can use white light glasses and specially processed props to display magical effects, such as seeing text or patterns appear on seemingly blank paper.
● Anti counterfeiting detection: used to detect items with fluorescent anti-counterfeiting marks, such as banknotes, documents, trademarks, etc., by observing their fluorescence reaction through white light glasses to determine their authenticity.
● Cheating in the entertainment industry: In entertainment activities such as poker and mahjong, some people use white light glasses and specially designed card tools to cheat, which can see the invisible characters on the back of the poker or the color and points on the back of the mahjong.