All of Treetime's LED artificial Christmas trees generate zero heat and last over 10 times longer than standard lighting on average. LED is a lighting technology that has come a long way when it comes to the prelit Christmas trees industry. The biggest problem with early iterations were that LED lights simply didn't look like traditional mini lights. Many people prefer the soft, warm, and inviting look of an incandescent bulb. Our lights burn at around 3000K (kelvin) which means the color temperature for clear lights is exactly like a regular mini light! You will save up-to 95% energy usage compared to traditional lighting but enjoy the same look of a classic bulb.