Sewing Machine & Overlocker Light Bulb Bayonet B15 240 volts 15 watts which is the recommend bulb for most household sewing machines. This is the standard bulb found in most machines
Couling Sewing Machines
Sewing Machine Bulb - 240v, 15watt Bayonet Clip-On Fitting
2) Singer Sewing Machine 15 Watt Bayonet Base Light Bulb # 32-7605
BA15D Double Bayonet Sewing Machine LED Light Bulb 5 Watt Daylight
Spares & Accessories - RICCAR - Page 1 - Couling Sewing Machines
Cheopha Sewing Machine Light Bulb Bayonet, BA15D LED SBC B15, 4W
Sewing Machine & Overlocker LED SUPER BRIGHT WHITE Light Bulb
ID: 9SCW. 2 New Generic Screw-in Clear Sewing Machine
Sewing Machine & Overlocker Deluxe Light Bulb RIVA FROSTED Bayonet