Since 1989, NEONETICS, Inc has offered hundreds of neon signs that are built to last for many years and they are committed to excellence and customer satisfaction. Each sign takes about 2-man days to make and each neon sign is made up of between 5 and 12 hand blown neon tubes. If left alone on a wall and used intermittently they can last 20-30 even 50 years with no recharge. They are best when left alone, that is why it was the lighting of choice in Vegas for over 75 years. They operate best above 50 degrees Fahrenheit but can be stored down to -60 degrees Fahrenheit.