Make a holiday lighting display unique to your home or business with C9 transparent red Christmas lights. Using only 7 watts, the 130-volt bulbs burn cooler, use less energy, and last longer. The intermediate base bulb resists fading, giving you 3,000 trouble free hours of incandescent lighting. They are UL listed for indoor and outdoor use and come economically packaged, 25 to a box. Make your holiday displays festive and inviting with these colorful bulbs.