Redesigned MAC TW1 internal/external dimmer switch 

We have redesigned the internal/external dimmer switch PCB (P/N 62006001, "PCB Switch / Relay") in the MAC TW1 because of a design weakness. The first version of the switch could overheat during normal use, causing damage to the switch itself and the surrounding PCB. 

The new switch is designed so that lamp power runs through 2 relays and only the low power required to control these relays runs through the switch. We recommend that you replace the old version switch PCB with the new version at the next scheduled service. The new switch PCB has the same part number as the old version (P/N 62006001) and can be ordered as normal. It will be supplied free of charge until July 1, 2009.