Just like to start this thread to share my personal opinion on why I will be choosing LED lightings/downlights for my home when its TOP next year. Do note that I also have business interest in LED lightings. Advantages of PLC low energy consumption relatively easy to replace when bulbs blows Disadvantages of PLC contains hazardous mercury have to replace blown bulbs every 6 months to 2 years. Mean being 9 months. Advantages of LED Clean and green lighting Even lower energy consumption Don't really need to replace as most LEDs last 35,000 to 50,000 hrs Disadvantages of LED higher initial costs Weighing the above, I will say LED looks like the winner(in my own opinion). At this moment, the price difference between LED downlights and PLC downlights is actually not huge. Considering 9W LED downlight and a 2 x 13W PLC downlight(with similar brightness), LED cost $56 while PLC cost $35. With savings of $14 per downlight if you switch on your lights for 8 hours daily, your breakeven is within 2 years. And yes, you reduce your carbon footprint too.