24v/28v 4.3w/5w bulb with an E14 or SES screw cap. With Christmas decorations, especially older ones the screw thread on the bulb could be an E5, E10, E12, E14, E17. Before ordering, check the following details: Voltage of the bulb - commonly 24v or 240v (mains) This bulb can also be used at 28v version, Wattage of the bulb - often somewhere between 3w and 15w, Screw thread size - measure carefully, 2mm makes all the difference between E12 and E14!.
