USB interface power supply mode is available(Note: power adapter is not included, this USB plug can only supply power, not charge) Two Lighting Modes Neon Open Sign: The neon open sign has two modes of stable and flashing light. You can switch the neon open sign according to day or night to attract customers more. Use and Installation: neon open sign is equipped with a suspension chain, you can hang the neon open sign where you want to hang the neon open sign, or neon open sign can be fixed by a mounting bracket. The sign board is first connected to the adapter, and then the adapter is connected to the USB cable. It can be powered by a PC, laptop, mobile power charger or USB power adapter. The button on the adapter is used to perform both steady and flashing light modes. Our neon open sign is energy saving and environmental protection. Size of the neon open sign is 17.8x8.8 inches, low energy consumption, effectively improve efficiency and save your costs, and achieve energy saving and environmental protection. Application Occasions: The neon open sign is very suitable for bars, cabinets, glass windows, shops, hotels and other signs.