Recently attended a conference at a hotel, in a large hall. The lighting chandeliers were fitted with what appeared to be normal clear candle lamps. But when they were dimmed for a projected presentation, I could see that each candle lamp had a square looking frosted capsule inside it. I can only assume they are LEDs. Anyone seen these? They looked very nice and threw out a lot of light (though there were 10-15 on each chandelier).