They have a full-size B22 bayonet cap.
Golf Ball Opal Light Bulbs 15w, 25w, 40w & 60w BC/B22 Bayonet Cap x 10
10 PACK OF CROMPTON GOLF BALL OPAL BULBS BC B22 25W DIMMABLE BRAND NEW SEALED
Golf Ball Opal Light Bulbs 25w, 40w & 60w SES/E14 Small Edison Screw x 10
Golf Ball Opal Light Bulbs 15w, 25w, 40w & 60w B22/BC Bayonet Cap x 10
Opal Golf Ball Bulbs, | Traditional, Incandescent | 25W 40W 60W BC SES ES | x 10
Eveready 5.2w Opal LED Golf Ball E14 SES Cap 6500K - Twin Pack S15296
