I'm designing led power supply with 55 V 1,2 A output using LNK420EG. I used PI Expert. Prototype board has an efficiency about 87%. Due to thermal issue I need to achieve at least 90% of efficiency. I ask if someone can give me same trick to get it. I'm thinking to increase transformer primary inductance so flyback will work in CCM. Can LNK420EG support this mode?