4W BA15D LED bulbs replace 40W BA15D halogen bulbs.Up to 90% energy savings,with lower power consumption and higher brightness, saving energy more effectively. 15T7DC Base The Push-in bulb has a viewing angle of 360 degrees, use 52 pcs high quality 2835 SMD, up to 400 lumens of brightness,with high color rendering Ra＞85,provides you and your family with comfortable and brighter light. Sewing Machine Light Bulbs Made with ceramics and anti-fire PC material, fashionable looking, durable and excellent in heat radiation,No UV or IR radiation,the service life can reach 30000 hours.Apply to AC/DC110V-130V input voltage Double contact bayonet base easy to install,For use in sewing machine light,pendant lights, bathroom's vanity lights, bedside reading lamps, desk lamps, ceiling fans, chandeliers,motion sensor, security lights, vacuum cleaner light,recessed and track lighting,etc. Size: 52mm*16mm. Please check out the dimensions carefully before purchase to ensure this bulb will fit your fixture. We have a 12-month free warranty. If you have any questions after receiving the items, please contact us directly. VOKWAK BA15D LED Bulb 4-Pack Wattage: 4W (40W halogen bulb equivalent) Beam Angle: 360 Degrees Luminous: 400 lm Size:L52mm*W16mm Voltage(V): AC 110V-130V Led type:52X 2835 SMD LEDs Colour Rendering Index (CRI):>85Ra Material: PC +Ceramic body Lifespan: 30000 hours ApplicationCompatibility: these sewing machine led bulbs are compatible with most sewing machines with push-in base , Compatible with SINGER models: 15-66, 15-88, 15-90, 15-91, 99, 201, 206, 221, 222, 301, 306, 319, 401A, 403A, 404, 500A, 503A, 200 Series, 300 Series, 400 Series, 500 Series, 600 Series, 700 Series, 800 Series, 900 Series Ideal for Pfaff 6091/7570 Sewing Machine, 1920's/1960's Singer machine, 1974 Bernina 830 Record, 1956 Singer 221 featherweight, 2206/4530 5062 C sewing machine Double contact bayonet base easy to install,For use in sewing machine light,pendant lights, bathroom's vanity lights, bedside reading lamps, desk lamps, ceiling fans, chandeliers,motion sensor, security lights, vacuum cleaner light,recessed and track lighting,etc. Please check out the dimensions carefully before purchase to ensure this bulb will fit your fixture.. If you have any questions after receiving the items, please contact us directly.