Impulse uses an integrated multi-chip LED. Robustly engineered from solid die-cast aluminum, this efficient luminaire offers architectural lighting options, including a framing projector and barn door accessories. Features How to create your Track or Rail layout: Select your light source(s) from below. Select your type of Track or Rail: J Single Circuit Track with End Caps J2 Two Circuit Track with End Caps H Single Circuit Track with End Caps L Single Circuit Track with End Caps Select your Track or Rail accessories to build the layout: J Track Single Circuit Accessories J2 Track Two Circuit Accessories H Track Single Circuit Accessories L Track Single Circuit Accessories