These 25W translucent blue colour bayonet incandescent golfball (round) light bulb.
Ideal for decorative festoon chains.
Features a BC-B22d bayonet (22mm) cap base.
Please note that even though the light bulb itself is IP65 rated, it must be used in a suitable IP65 rated socket in order for it to be used outside safely.
Need more help in choosing a suitable light bulb? Read our guide What is a Golfball Light Bulb.