Description With this tool, you can easily find the problem of CCFL. It also suitable for testing LCD screen, CCFL advertising signs, or other device. It can be directly connected with 12V power supply. Small size, convenient to carry. Feature - Color: As Shown. - Material: Electronic Component. - Size: 2.5 x 6.5 x 2cm. -Input Voltage: DC Min.9V Max.14V - Input Current: Max.380mA - Input Power: 8.5W - Output Voltage: 670V - Output Current: Max.6.1mA -Be careful of high voltage! Do not touch its metal parts when working. -Wonderful design for testing all types ccfl lamps in monitor ,TV ,Laptop. -When we repair LCD screen or notebook and see a little shadow from very dark screen or get inverter protection, it's very difficult to know if problem comes from the CCFL tube or inverter board. It also can be used for lighting billboard or advertising signs by CCFL lamp.Package list: 1 x Tester