An intrinsically phase-balanced direct current uninterruptible power supply is provided. The venting holes stop the glue portion from running over the second chip unit. The sealing region is disposed around the chip region. The lensed mirror reflects modulated light from the array onto the display plane, the lensed mirror comprising a refractive portion and a reflective portion. In one aspect, a method includes receiving a request for access to a security system device; determining whether the device is set to a first mode or a second mode; and in response to determining that the device is in the second mode, generating one or more notifications to authorized users identifying the access to the security device.