The item includes 4pcs dimmable 4W CA10 E12 Candelabra Base LED Vintage Antique Filament Bulb, Squirrel Cage Nostalgic Tungsten Filament Replacement Incandescent Bulbs. 100-130V AC input voltage, warm white 2200k and low power consumption. Luminous Flux output up to 100lm per watt. It is used as a halogen/incandescent led replacement bulb. Long liftime, High efficiency and environmentally friendly. Widely used for Bistro Lights, Large Tents, Decorative Wedding Lights, Decorative Light Strands, Commercial Light Strings, Chandeliers and Ornamental Fixtures.