Using your ALTA industrial pendant light is easy. First, have a licenced electrician install it according to the instructions in the box. Once installed, you can insert a suitable E27 bulb (up to 72W) into the lamp holder. Remember, this light is only for indoor use. For maintenance, simply wipe the powder - coated iron surface with a dry cloth regularly to keep it clean. If you encounter any issues within a year, you're covered by the replacement warranty. Just be careful not to mistake it for inferior products from other suppliers.