Later, we will introduce the corresponding inductive switch function, which will increase the service life after opening - Imported glow tubes: IN14 glow tube made in the Soviet Union, with long life and good consistency. Built-in visible light sensor to avoid infrared interference. The display brightness of the glow tube can be adjusted manually.In order to avoid damage to glow tubes when plugging and unplugging, protection pads are designed to protective them Specifications: - Soviet IN14 glow tube: mercury vapor inside, long service life, large characters, good consistency - Touch buttons: touch operation, embedded, copper, touch control, buttons - Infrared sensor: The clock is equipped with an infrared remote control - Neon bulb: neon bulb is used at the colon point, which is closer to and more coordinated with glow tubes - Light sensor: Ambient light sensing function, automatically adjust the brightness of the glow tube according to the use environment - Power supply/upgrade interface: Micro USB power supply interface, DC5V power supply - Product parameters: 18.25.07.8cm (LxWxH) - Working voltage: DC5V micro USB interface - Working current: =700ma Package Included: - 1 x Set of Glow Tube Clock Attention: 1. The glow tubes of this product are made of glass, please not let children touch the tubes at will. The clock's power supply voltage is 5V, high voltage will damage the clock. Please not shake the glow tubes at will to avoid irreversible damage. Usually it cost about 35USD-50USD. If you receive defective item, please kindly notify us within 14 days.