Item 2920130 has must read information.
: Per the vendor p/n 2920130 is no longer available and does not have a direct replacement. For proper service replacement the complete strobe lamp assembly must be replaced by ordering p/n 0272507. Once this upgrade has been made service parts can be ordered on an as needed basis. If your strobe lamp is marked with vendor p/n 6640 this upgrade will be necessary. If your strobe lamp is marked with vendor p/n 6650 this upgrade has already been completed.
