https://github.com/Koenkk/zigbee2mqtt/issues/4378

ext.js

const fz = require('zigbee-herdsman-converters/converters/fromZigbee');
const tz = require('zigbee-herdsman-converters/converters/toZigbee');
const exposes = require('zigbee-herdsman-converters/lib/exposes');
const reporting = require('zigbee-herdsman-converters/lib/reporting');
const extend = require('zigbee-herdsman-converters/lib/extend');
const ota = require('zigbee-herdsman-converters/lib/ota');
const tuya = require('zigbee-herdsman-converters/lib/tuya');
const utils = require('zigbee-herdsman-converters/lib/utils');
const globalStore = require('zigbee-herdsman-converters/lib/store');
const e = exposes.presets;
const ea = exposes.access;

const definition = {
    zigbeeModel: ['4257050-RZHAC'],
    model: '4257050-RZHAC',
    vendor: 'Centralite',
    description: '3-Series smart outlet',
    fromZigbee: [fz.on_off, fz.electrical_measurement],
    toZigbee: [tz.on_off],
    configure: async (device, coordinatorEndpoint, logger) => {
        const endpoint = device.getEndpoint(1);
        await reporting.bind(endpoint, coordinatorEndpoint, ['genOnOff', 'haElectricalMeasurement']);
        await reporting.onOff(endpoint);
        try {
            await reporting.readEletricalMeasurementMultiplierDivisors(endpoint);
            console.log('\n\nUSED FROM DEVICE\n\n');
        } catch (exception) {
            // For some this fails so set manually
            // https://github.com/Koenkk/zigbee2mqtt/issues/3575
            endpoint.saveClusterAttributeKeyValue('haElectricalMeasurement', {
                acCurrentDivisor: 10, acCurrentMultiplier: 1, powerMultiplier: 1, powerDivisor: 100});
            console.log('\n\nUSED MANUAL\n\n');
        }
        await reporting.rmsVoltage(endpoint, {change: 2}); // Voltage reports in V
        await reporting.rmsCurrent(endpoint, {change: 10}); // Current reports in mA
        await reporting.activePower(endpoint, {change: 2}); // Power reports in 0.1W
    },
    exposes: [e.switch(), e.power(), e.current(), e.voltage()],
};

module.exports = definition;