Using these MR16 exterior wall pillar spot lights is easy. First, make sure you have a licenced electrician install them as per the instructions in the box. Connect the lights to an external control gear and use an input voltage between 12 - 24V. Since the globes are not included, you'll need to buy them separately and ensure they fit the MR16 lamp holder with a max capacity of 20W. When choosing a location, consider the IP65 rating. This rating means the lights can handle dust and water, but still, make sure it's suitable for your intended use. For maintenance, periodically check the white powder - coated aluminium body for any signs of damage or corrosion. If there are any issues during the 2 - year warranty period, you can get a replacement.