1) The charging adaptor is Replacement Christmas Concepts 24V/450MA/300MA/250MA/100MA Compatible with Christmas Lights Indoor Battery Lights.This listing is for 1 x 3 pin UK power adaptor ONLY - NO LEAD 2) Input: 100-240 V, 50/60 Hz. Output:24V 450MA 3) The output is flicker-free, preventing damage to LED beads, ensuring that Christmas lights and snowflake lights remain bright all the time, and the light and shadow on Christmas Eve are more dynamic 4) Please check your Christmas lights' specs before ordering: must be 24V, and current within 100MA-450MA. Mismatch may affect use