Tritium Gas Tube Self Luminous Emergency Lights. Features: Tritium Gas Tube, Self Luminous, Bright and Visible in the Dark. Long Life Span, Glows Continuously for 15 - 25 Years. Perfect for Decoration, Jewelry, Glasses, Clock, Etc. Suitable for Indoor and Outdoor Use. Maintenance Free: Easy to Install, No Maintenance Required. Specifications: Voltage: 5V Usage: Emergency Style: Novelty Power Source: Solar Plug Type: US Light Source: Fluorescent Is Bulbs Included: Yes Is Batteries Required: No Is Batteries Included: No Certification: CCC Body Material: Glass Packing: 1x Piece Tritium Gas Light Only Note: Actual Color May Be Slightly Different from the Image Due to Different Monitor and Light Effect . Your order will be shipped from abroad so please allow the necessary time of at least 14 work days for delivery due to ongoing delays in postal deliveries globally.