Old Fashioned C7 Christmas Lights with Screw In Bulbs UL Listed - For Indoor & Outdoor Use Red Bulbs with Green Wire Fuse Protected - Weatherproof - Connector Plug at End - 12" Spacing between Bulbs - Steady Burning - 5 Watt Bulbs - Each Bulb Burns Independently Searching for those Nostalgic Christmas Tree Lights you remember from Grandma's House ? - Purchase your own set of these vintage christmas lights & enjoy them for years to come ! Uses: red christmas tree lights , red roofline lights , valentines day lights , c7 red christmas lights , outdoor garden party lights , red patio lights . red string lights " Holiday Pride: The Brand Preferred by Professional Decorators " Red C7 String Lights - UL Listed - Safe for Indoor & Outdoor Use. These C7 Red Christmas Lights are perfect for wrapping around trees, garland & other applications.