SubstiKIT-UL-Type-C LEDVANCE SubstiKIT LED T8 Type C System Choose LEDVANCE SubstiKIT dedicated lamps and drivers to upgrade your traditional fluorescent fixtures for the most controllable lighting system retrofit which is dimmable by adding 0-10V dimmers to the installation. Learn MoreSpec Sheet SYLVANIA SUBSTIKIT™ LED T8 TYPE C SYSTEM Learn More Spec Sheet