What is a Heat Sink? | GDTech LED Signage by Brianna Parker | Sep 23, 2019 | 0 comments What is a Heat Sink? | GDTech LED Signage Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.