Delta's DC-AC inverters are low noise, high frequency tube triggers that are used primarily for driving the backlight of LCD displays for notebooks, sub-notebooks and LCD monitors. Our 12"-20" size is for LCD monitor applications with panels of 1/2/4/6 lamps. Our 4.3 mm in height inverters with over 90% efficiency are for notebook PCs and our 3~20mm inverters with 0.5W~30W are for DSCs and PDAs.