question: typescript for iot device?

example1.ts

export interface LEDStates1 {
    LED1: "OFF" | "ON";
}


export interface LEDStates2 {
    LED1: "OFF" | "ON";
    LED2: "OFF" | "ON";
    LED3: "OFF" | "ON";
}


type LED = "LED1" | "LED2" | "LED3"

export interface IState {
    id: string;
    online: "OFFLINE" | "ONLINE";

    mode: "Standby" | "Working";

    LEDStates: LEDStates1 | LEDStates2
}

class LightBulb1 implements IState {

    id: string = "123";
    online: "OFFLINE" | "ONLINE" = "OFFLINE"
    mode: "Standby" | "Working" = "Working";

    LEDStates: LEDStates1

    constructor(states: IState) {
        this.LEDStates = states.LEDStates
    }

    turnOn (led: LED) {
        this.LEDStates[led] = "ON"
    }
}

example2.ts

type LED = "LED1" | "LED2" | "LED3"

export interface LEDStates1 {
    LED1: "OFF" | "ON";
}


export interface LEDStates2 {
    LED1: "OFF" | "ON";
    LED2: "OFF" | "ON";
    LED3: "OFF" | "ON";
}

export interface IState1 {
    id: string;
    online: "OFFLINE" | "ONLINE";

    mode: "Standby" | "Working";

    LEDStates: LEDStates1
}

export interface IState2 {
    id: string;
    online: "OFFLINE" | "ONLINE";

    mode: "Standby" | "Working";

    LEDStates: LEDStates2
}

class LightBulb1 implements IState1 {

    id: string = "123";
    online: "OFFLINE" | "ONLINE" = "OFFLINE"
    mode: "Standby" | "Working" = "Working";

    LEDStates: LEDStates1

        constructor(states: IState1) {
            this.LEDStates = states.LEDStates
        }

        turnOn (led: LED) {
            this.LEDStates[led] = "ON"
        }
}

class LightBulb implements IState2 {

    id: string = "123";
    online: "OFFLINE" | "ONLINE" = "OFFLINE"
    mode: "Standby" | "Working" = "Working";

    LEDStates: LEDStates2

        constructor(states: IState2) {
            this.LEDStates = states.LEDStates
        }

        turnOn (led: LED) {
            this.LEDStates[led] = "ON"
        }
}