Northwestern POWERDECAL is an innovative LED backlit logo for your vehicle window. Device turns on automatically while driving at night via sensor technology and shuts off after 2 minutes when parked; once installed you never need to touch it. POWERDECAL offers a clean exterior while maximizing visual impact with full color and contrast at night. POWERDECAL brightness works great in dark factory tinted windows. Easy installation with quality 3M adhesion material, just peel and stick, no tools required.