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There have always been embarrassing situations around us when we want to go for a call of the nature at night. Sometimes you may have problems of finding the slippers. Worse still, you may be astonished to find that you have taken the wrong slippers of your roommates.
The irradiancy slippers can be noticeable in the darkness because some fluorescence materials are added to the slippers. The lighting areas which are made up with the fluorescence materials are located around the bottom of the slippers. Now, you can easily find out the correct location of your slippers.
Guo Jiahong, Zeng Hui, Liu Lulu, Xu Qian