lighting groups 42” invisible reversible ceiling fan with light & remote, 4 retractable blades fan chandeliers for kids' room, indoor pirate ship steering wheel ceiling light kits with fans (blue) lighting groups details of crystal ceiling fan light brand: lighting groups product type: ceiling fan model: yfs02 size: 42 inch material: crystal,acrylic,metal,glass blade number: 4 light source: led wind gear: third gear switch type: remote suitable for living room dining room bedroom style: modern voltage: 110v why we choose a ceiling fan light invisible ceiling fan light are now very popular with many families, living room, study, bedroom can be installed, very practical, decorative effect is good, the applicable season is long, can be used for four seasons even indoor winter. it is very healthy and natural. in hot weather, conditioner is adjusted to about 28 degrees celsius, it is used with ceiling fan. fan light is even and comfortable. actual indoor room can be lowered few degrees. it is energy saving and comfortable. the core of ceiling fan is the quality of the motor. the pure copper coil of shansteel motor is smooth, thick and durable.the actual use of inferior rolled steel and copper clad aluminum coils instead requires careful distinction. there is material and workmanship of blades, lampshades, and accessories. it recommended to examine physical objects, weight components, materials, blade sounds, and view after sales and installation services. the installation of ceiling fan lights should pay attention to the correct installation balance, there are certain requirements for electrician.qualified ceiling fan plus correct installation do not present safety issues. two expansion screws fixed on solid wood or cement roof, the roof bearing is more than 110 pound, can not be directly hung on the decorative ceiling. the height should be enough, the length of the boom can be exchanged, after installation of blade from ground shall not be less than 8.5 foot. the installation is completed until fan stable.