class SmartLight:
    def __init__(self, name, bright):
        self.name = name
        self.set_brightness(bright)

    def set_brightness(self, value):
        if value < 0:
            self.bright = 0
        elif value > 100:
            self.bright = 100
        else:
            self.bright = value

light = SmartLight("침실1", 150)
print(light.bright)