technical details mini LED bulbs.New arrival! This LED Bulb will work very well on Singer Sewing Machine which use a Bayonet-mount bulb, such as the Singer 221, 221K, 222, 301, 301A, 401, 401A, 403, 404, 500, 503, 503A, and Touch and Sew models.Base: BA15D (Double contact, parallelpin) LED Qty : 64-2835 SMD LEDs Input: 110~120VPower: 6W Diameter: 18.5mm Length: 53mm Color Temeprature: Soft White(Warm White 2700~3000K)Brighrenss: 500~600lmDimmable: Dimmable with Led dimmer only, it will flickers with the traditional dimmer or high/low sets switch.CRI>80RaBeam Degree: 360 degreeMaterial: Ceramics+PCEquivalent: 60W halogen bulbs. we suggest you use it it replace the 40W or70W halogne bulbs perfect.Features:1. Easy to install, ideal for BA15D can light fixtures.2. Energy saving, save dramatically on energy costs compared to incandescent lamps.3. Ceramic base for fast heat dissipation4. Instant-on to full brightness.5. No more maintenance, long lifespan.Package including:5pcs BA15D LED Light Bulb