Now, Brightology's lighting technology brings you that calming, warm feeling. The Classic Mercury Shape Light Bulb uses an LED filament bulb designed to echo the warmth of candlelight. That means you get the energy-saving and eco-friendly power of LED without the hazards of an open fire. Plus, you can lounge under the warm decorative lighting effect. Built with strong and sturdy materials, these lamps will surely last you a very long time.