When a lamp doesn't work, it is hard to know if the problem comes from the CCFL tube or inverter. With this tool, you can easily find the problem. 

Features: 
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. 
  
Specifications: 
Material: Plastic 
Input Voltage: DC Min.9V Max.14V   
Input Current: Max.380mA 
Input Power: 8.5W 
Output Voltage: 670V 
Output Current: Max.6.1mA 
Item Size: 2.5 * 6.5 * 2cm / 1 * 2.6 * 0.8in 
Item Weight: 36g / 1.3oz 
Package Size: 11.5 * 8 * 2cm / 4.5 * 3.1 * 0.8in 
Package Weight: 41g / 1.4oz 

Package List: 
1 * Set of Lamp Tester