Halo-2 Power-Trac system provides two separate 20 A circuits. Each circuit can be independently switched. Provides maximum flexibility, with a miniature profile. Suitable for a wide range of commercial, merchandising and residential applications. Electrical capacity is 20 A per circuit when properly balanced. Installing lampholders is simple. An adjustable contact allows selection of the circuit position. Lift or lower the contact until it touches the plastic stop of the assembly. For circuit NO 1 move contact to the down position. For circuit NO 2 move contact to the up position. Halo 2-Circuit Track accepts both Halo and Lazer-by Halo lampholders.