Enjoy all the benefits of advanced LED energy-saving technology with the Feit Electric ST19/PRISM/LED 3D fireworks effect LED Light Bulb. This light is non-dimmable and uses 2 watts of energy. This bulb fits a standard light socket and casts colorful fireworks light with 3D effect, which can bring gorgeous visual effects to your home, party, wedding and more. Get instant on to full brightness even in subzero temperatures with relatively cool running performance. This ST19 LED bulb has an average life of 10,000 hours, are RoHS compliant and are 100 percent mercury-free.