Because CFs are so energy-efficient, they are ideal for use in light fixtures that stay on for longer periods of time, such as kitchens, work areas, desks, and outdoor lighting. And choosing a control device that works well with CFs can be a challenge. Dimmer switches and CFs don't mix either. The same goes for ordinary photo control devices that turn lights on and off as the sun rises and sets. However, a photo control device rated for use with fluorescents will work very well, and very safely, with a CF lamp.
Mechanical timers are fine with any compact fluorescent.
Electronic timers, however, may not be compatible with them, and using them together could result in damage to the timer, the CF bulb itself, or both.