Using a chaser isn't recommended since the actual short delay between cycles won't do the motors in your effects any good.
Also bear in mind that many DMX Effects - certainly the datamoon have a period of "self test" where they test the program and stepper motors before the bulb comes on and they become operational. For this reason, unless its just simple on/off control during buffet breaks etc then standard mains switchers aren't really going to be of any use.
Better to go DMX and invest in a small desk type controller, such as the Behinger and gen up on programming etc. You can enable the shutter at DMX level to take care of any short periods of black out from the effect, making it appear off, whilst the lamp and control circuitry still reman powered and ready for virtually instant use

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