Connectable: Yes. Bulb: 2W S14 LED bulb(Color Temperature: 2700k ). FeaturesWaterproof, Connectable, Weatherproof, Bulb/Tube Included, Weather Resistant. E27 socket garden string light, best for Porches, Pergola, Decks, Pergola, Arboretums, Vines, Hedges and other outdoor place.