import type { Service } from 'homebridge';
import type { GoveePlatform } from '../platform.js';
import type { GoveePlatformAccessoryWithControl, ExternalUpdateParams } from '../types.js';
import { GoveeDeviceBase } from './base.js';
/**
 * Purifier device handler for H7120/H7121 models.
 * Supports on/off, 4-speed control, night light, lock, and display light.
 */
export declare class PurifierH7120Device extends GoveeDeviceBase {
    private _service;
    private cacheSpeed;
    private cacheLock;
    private cacheLight;
    private cacheDisplay;
    private nightLightChar?;
    private displayLightChar?;
    constructor(platform: GoveePlatform, accessory: GoveePlatformAccessoryWithControl);
    get service(): Service;
    init(): void;
    private internalStateUpdate;
    private internalSpeedUpdate;
    private internalNightLightUpdate;
    private internalLockUpdate;
    private internalDisplayLightUpdate;
    externalUpdate(params: ExternalUpdateParams): void;
    private handleSpeedExternalUpdate;
    private handleLockExternalUpdate;
}
export default PurifierH7120Device;