Using these Philips halogen globes is easy. Just make sure your fixture has a G9 base, and then carefully insert the globe into it. When handling the globes, always make sure your hands are dry to avoid any damage. Also, never touch the glass part of the globe with bare hands as the oils from your skin can cause uneven heating and shorten the globe's lifespan. As for maintenance, keep the fixture clean and free from dust. If the globe stops working, simply replace it with one from the pack. These globes are great for downlights and will give you reliable lighting for a long time.