Red Pine Artificial Christmas Tree With Clear LightsFeatures Pre strung with UL listed clear lights Light string features base lock (TM) to keep bulbs from falling out One bulb burns out, and others remain lit Fire resistant and non allergenic Product Details Foliage Lushness: Sparse Tree Family: Pine Lights Included Bulb Type: Incandescent Light Functions: Steady Constant Tree Type Branch Tip Count (6' Size): 520