'Turn the light on.'

def turn_on(self, **kwargs):

    if ((ATTR_RGB_COLOR in kwargs) and self._color):
        self.vera_device.set_color(kwargs[ATTR_RGB_COLOR])
    elif ((ATTR_BRIGHTNESS in kwargs) and self.vera_device.is_dimmable):
        self.vera_device.set_brightness(kwargs[ATTR_BRIGHTNESS])
    else:
        self.vera_device.switch_on()
    self._state = True
    self.schedule_update_ha_state(True)
