Light without electrical energy. The glow sticks are ideal as an emergency signal, for night walks, tent markings, underwater light, path markers, as a party gag, for garden parties, as a souvenir or as sledge lighting. The glow sticks are activated by bending and are only used once. The 'Ni-Glo' can be 'recharged' with light and are therefore suitable for multiple use. However, their light output is weaker.
