'Turn the light on.'

def turn_on(self, **kwargs):

    brightness = kwargs.get(ATTR_BRIGHTNESS)
    if (brightness is None):
        self._brightness = 255
        self._send_command('turn_on')
    else:
        self._brightness = brightness
        _brightness = ((brightness * 100) // 255)
        self._send_command('dim', _brightness)
