Very low, lights up even in the Lamp controller hardly. I do NOT recommend these bulbs and one came broke. The entire batch is basically useless as they are so boring. The new bulb is very dull blue in the middle. Old lightbulbs are much brighter.
Pros
Easy to replace: Just unplug, take out the burnt out damaged light bulb and install a new light bulb, easy to install without wasting any time, and the string lights will brighten up your Christmas party