Features: 1) Material: LED 2) Plastic frame, ABS, with rigidity and light weight 3) Simple installation 4) Low power consumption. 5) With LED lights, excellent visibility 6) Many shapes and sizes available 7) Life span: more than 100,000 hours (about 10 - 15 years) 8) Power: AC 220V?0% / AC 110V?0% 9) Display color: blue, red 10) Display effect: 3 twinkling effects 11) Operating electricity: <3W