| Self-Illuminating Crystal Sign (LS 001) 1. No radioactive substance that is harmful to people and environment. 2. Energy saving and environmental protection. It can be illuminant without electricity. 3. It can be iluminant for over 12 hours if only to absorb all kinds of visible light of 10 to 20 minutes. 4. Both illuminant brightness and time are 30 to 50 times of that traditional fluorescence material. 5. Superior in heat resistance, durability and cold tolerance. 6. Verious colors can be available for the outdoor self-illuminating crystal sign. |
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