Tritium as Gas Lamp (Without Tritium Gas)Glass Tube Self-Illuminating Lamp Emergency Lights Glow in the Dark Replace Tritium Gas LampFeatures:Glass tube, self-illuminated, bright and visible in the dark. Long service life, replace tritium gas lampIt needs to be filled with light to emit light, and ultraviolet radiation is used Ideal for decoration, jewelry, glasses, clock, etc. Suitable for indoor and outdoor use. Maintenance-free: easy to install, no maintenance required. Note:The actual color may be slightly different from the picture due to different monitor and light effectSpecification:Size: 1.5*6mmScope of application:The glass tube can be directly used in aerospace, instrumentation, subway, tunnel, fire, etc., and civil industry, such as jewelry, watches, fishing equipment, luxury goods, glasses, gifts and other industries. Packing: 1x Piece of Glass Tube