Health Canada has ordered a recall of Christmas lights sold at Walmart.

The Holiday Time 100 Count Indoor Mini Lightset Christmas Seasonal Lights might overheat and pose a fire hazard. More than 100,000 strands were sold at Walmarts across Canada since October 2014. 

The model numbers can be found on a tag on the product and here, on the Health Canada website. 

You're encouraged to stop using the lights immediately and return them to Walmart for a refund.