Enjoy our retro fit tradional C9 light set with a 25' Green wire string and 25 transparent C9 light bulbs during the holidays, on your patio, gazebo, pergola, or special event. This light set is commonly referred as "retro" because it will remind you of the old fashioned type Christmas lighting that you would use on house or Christmas tree reminiscent of the 1950's holiday decorations. Still classic to this day!!! Each classic C9 bulb is 7 watts and made for 120V and comes with a transparent glass so that you can see the filament inside of the bulb. Every C9 bulb is rated for a 3,000 hour life span and will fit into any C9/E17 socket base. We highly recommend purchasing an extra box of bulbs to have on hand to be used for replacements when the time comes (ASIN B004Q690RI).