Features 1、Neon light tester, which lights up when touched, suitable for the detection of various neon light tubes. 2、Adopt dry battery (not included) to supply power, low power consumption, it is a practical tool to repair neon lights. 3、Just press and hold the power button and the LED indicator and neon light will flash. 4、Suitable for light‑fixture pavilion, hardware stores, electricians, home inspections, shipment inspections, etc. 5、Portable neon tube detector, small and light, can quickly find the reason why the neon light is not on. Specifications Item Type: Light Tube Tester Material: ABS Weight: Approx. 83g / 2.9oz Product Size: Approx. 20x4x2.1cm / 7.9x1.6x0.8in Retractable Antenna: Approx. 15cm / 5.9in Battery Parameters: 4 x AA Batteries (Battery Not Included) Function: Used for neon tube detection Application: Light-fixture pavilion, hardware store, electrician, home inspection, shipment inspection, etc. How to Use: Install 4 AA batteries (not included), pull out the output head (antenna), touch the output head (antenna) with the electrode line of the neon tube, press and hold the POWER button, at this time, the LED indicator and lamp under test flashes. Package List 1 x Light Tube Tester (Battery Not Included) 1 x English Manual