Using these spot lights is easy. First, make sure you have a licensed electrician install them as per the instructions in the box. Connect them to an appropriate power source within the 12 - 24V range and use the required external control gear. The lights don't come with globes, so you'll need to buy them separately. For maintenance, keep them clean by gently wiping with a soft cloth. Avoid using abrasive materials as they could scratch the 316 stainless - steel surface. Since they have an IP65 rating, they can withstand some dust and water, but don't submerge them. If you face any problems within 2 years, you can get a replacement under the warranty. Always double - check that the IP rating matches where you plan to use the lights to ensure they work well and to keep the warranty valid.