I've replaced the 50 watt halogen bulbs with TorchStar LED bulbs which are much brighter but still warm. (3000K) I bought 24 of these bulbs and had a defect, it still worked but made a low frequency buzz. I contacted TorchStar and they responded very quickly. They sent a replacement within 2 days. I am very satisfied with the product and the customer service. I can't say anything about the durability of these lamps, I've only had them for a week. LED lights have a reputation for being long lasting, so don't stress.