... etc neon clock1. Voltage: input 110~130V or 220~240V AC, 50~60HZ output 12V DC, 350~830mA2. Size: 9”, 12”, 15 ... ”, 17”, 19”3. Single neon ring or double neon rings.4. Any color neon tubes around: white, blue, yellow ... surface, electroplate chrome frame or plastic frame.6. Neon tube powered by adaptor (included).7. Requires one AA battery (not included) neon clock