High quality B15d bayonet bulb, no flicker, frosted glass material, excellent heat dissipation. Bulb size: 58mm x 22mm. Please check if the size will fit your light fixture. Not suitable for old sewing machines with ballast. Eco-friendly sewing machine light bulb B15 2W LED warm white 3000K, 150lm with 360 degree beam angle. Ba15d LED 2W is a good match for Ba15d 15W incandescent bulb, saving up to 90% on electricity bills. Excellent performance: This mini B15 filament bulb is not compatible with dimmers. Instant on, no warm-up time, safer than traditional bulbs. It has stable performance without mercury or other harmful ingredients. No buzzing, humming, or flickering. It is ideal for decorating your salt lamp. T22 Ba15d LED bulbs can be installed easily without other tools. Just turn off the power first and tighten the bulb, you can get warm lighting instantly. Widely Uses: Ba15d LED bayonet bulb (2 contacts) is ideal for sewing machine, night light, bedside lamp, salt lamp,