3h depending on how much light it absorbs. It is the best one for night event. Such music show, night walk and so on. The logo can be same as regular debossed, embossed or printed on the glowing wristbands. After exposure to natural light, fluorescent light, and ultraviolet light, the phosphor can store the light energy, stop the light and release it slowly in the way of fluorescence, so the light can still be seen at night or in the dark, lasting for hours to more than ten hours. The luminescent powder can be automatically lit in the dark. The main custom carabinercomponent is rare earth, which belongs to inorganic materials. The luminous powder first absorbs a variety of light and heat, converted into light energy storage, and then automatically luminescence in the dark, by absorbing all kinds of visible light to realize luminescence. The product does not contain radioactive elements, and can be used indefinitely, especially for short wave visible light, sunlight and ultraviolet light (UV light) under 450 nanometers. Accept the ability. Here is the properties of the luminous powder. 1st short excitation time, long duration of luminous and afterglow, high brightness. 2ndvery stable physical and chemical properties, strong environmental adaptability, ordinary service life. 3rd safe and reliable, energy saving, green environmental protection.4th The particles are small, and the fineness and granularity are evenly distributed. custom-silver-braceletsnike-rubber-bracelets event, camp or other ativities. So choose the options like size, colors, styles is so imporcustom carabinertant to meet the requirement. Size is 150mm for toddler, 180mm for youth and 202mm for adult. For the width, 6mm, 12mm, 19mm and 25mm for your choice. The color of bracelet can be solid, segment, swirl, glowing or UV transfer. The logo can be printed, colorfilled, embossed printed, debossed or embossed. Besides, we make dual layer also. The shape can be normal rounded or figured shape like watch and heart. It is good to make a figured one show personality. We provide bulk packing of 100pcs per bag or individual packing of 1pcs/opp bag. If it is a gift to give away, induvidual packing will be best. And we can print something on the bag and a printed card board inside the opp bag is available. Welcome to place an order here.