Sep 14, 2022 · Aluminum alloy + PC cover not only protects the internal structure of internally illuminated solar road stud NK-RS-X6, including lithium battery 1000mah * 3.2V and white, yellow, blue, red, green LED, but also protects high-performance solar panels. Internally illuminated solar road stud NK-RS-X6 uses solar panel (Monocrystalline 2.5V /120MA