This tree features MAX 4 Non-Stop Professional Quality Incandescent Lighting: * If a bulb or bulbs are removed the set remains lit * If a bulb burns out the set remains lit * Eliminates light failure due to misaligned contacts * Commercial bulb filament quality and spacing * 3-year manufacturer"s guarantee For indoors or out, nothing quite finishes the season like the Seasons 4 Commercial 100 ct. Red Mini Incandescent with Green Wire and 5.5 in. Spacing - Case of 24. Adjust the amount of flare you want by adding as many strings as your space demands. Note: if a bulb burns out or one is removed, the set will remain lit. This eliminates light failure due to misaligned contacts. * Lit with MAX 4 Non-Stop Lights * Commercial-quality incandescent lights * Festive red lights * 100 lights with 5.5-inch spacing * Indoor/outdoor use * Green cord with 2.75 inches from last light to plug