Quick connect, easy installation via captive screws. On/Off switch. Multiple knockout locations for easy wiring. JBL direct wire junction box at just under 1" in height in work with our LLE, T3, T4 and T4E series. While used with our LLE series it will also provide on/off switch function. JBL is available is Silver, Bronze and white finished. Electrical rating is 120V input. All JBL / JBL OCS have 1/2" knockout and captive screws for quick installation.