Certain Twinkly products can be used outdoors or in a sheltered area. 

Other can only be used indoors, away from atmospheric agents and drastic changes in temperature/humidity.

Check the icon that describes type of use supported on the website or your Twinkly product pack:

[Indoor icon] – Product for indoor use only

[Outdoor icon]  – Product for indoor and outdoor use (*)

[Patio icon] – Product for outdoor use, sheltered from rain and snow.