... robust, shock-resistant alternatives to powered electroluminescence.The product is a flexible material that can be attached to any substrate ... until it naturally recharges with exposure to light. The material is endlessly rechargeable. Glow output depends on diameter. Larger ... PVC, EVA, PP, PE, etc. The glow-in-the-dark material itself is proprietary.Powerless Illuminating Tubing has been used in ...