ionic-framework/demos/src/range/app.component.ts

import { Component } from '@angular/core';

@Component({
  templateUrl: 'page.html'
})
export class ApiDemoPage {
  brightness: number = 20;
  saturation: number = 0;
  warmth: number = 1300;
  structure: any = {lower: 33, upper: 60};

  onChange(ev) {
    console.log('Changed', ev);
  }
}

@Component({
  template: '<ion-nav [root]="root"></ion-nav>'
})
export class ApiDemoApp {
  root = ApiDemoPage;
}