"A light like a necklace" – it hangs from the user's neck. The user can illuminate an object while still having both hands free to work. Highly luminous, white LED lighting allows the user to see the illuminated object clearly. The purpose of this development project was to create a light source that could be used for outdoor activities such as fishing or camping. The hands-free feature also enables users with impaired movement in one arm to work in dark places. The angle-adjustable light also serves as a switch. The main unit, strap, and joint portion are all integrated and made from the same silicon material, giving the product a graceful, flowing beauty and making it easy to put it on and take it off. The product is designed with a safety feature that releases the joint when a load of 4 kg or more is applied to the strap, thus preventing any tightening of the strap around the user's neck.