Description: - Portable handheld neon tube. - Easy to use just by pressing and holding POWER button, then LED indicator and the neon tube will flash. - Powered by 4xAA batteries (not included). - With this , you can quickly find the reason why neon lamp does not turn on. - Size: 19.5x4.1x2cmHow to use: - Install the batteries (pay attention to the polarity). Extend the and touch it to the polarity wire of neon tube. Press and hold POWER button, then LED indicator and the neon tube will flash.Notes: - When you touch the with your hand, DO NOT button, or you will be shocked. - DO NOT use this item in a damp environment or with wet hands. - DO NOT reverse the polarity of the battery. Please install the batteries correctly before closing the cover. - Avoid strong vibration while using, carrying, or storing. Keep this item clean.Package Includes:1x Neon tube