The Commercial 35-ct. Red to Blue M5 LED Lights w/4-in. Spacing (Case) from Forever LED makes quick work of holiday decorating. These sets come in packages of 5 or 10 strings of lights so you`ll have plenty of Christmas lights to decorate your home o r business. These lights are full wave LED mini lights with a colorwave from red to blue. They are bright with no flicker and are on a parallel series so if one goes out the rest stay on. As these Christmas lights are an ENERGY STAR Product they keep your electrical bills low and are designed to be used either indoors or out. Each 12-foot string has 35 lights spaced 4 inches apart.About Forever LEDForever LED specializes in LED lighting. In addition to their energy-efficient holiday light string s they ve also developed a line of Full-Wave lights that provide DC power all along the string of lights. Located in Marion Ind. Forever LED is an ENERGY STAR partner.What is an ENERGY STAR product?This product has earned the ENERGY STAR rating from the U.S. Environmental Protection Agency and the U.S. Department of Energy. ENERGY STAR is a voluntary labeling program designed to identify and promote energy-efficient products. These products meet strict guidelines and can help you save up to a th ird on energy bills compared to like products without an ENERGY STAR rating. ENERGY STAR products saved about $14 billion in 2006 alone and their numbers are growing exponentially in product categories. This ENERGY STAR product has met criteria that will save energy money and reduce greenhouse gas emissions. An excellent choice