A transformer is a small device that converts the high voltage power (120 V or 230 V, depending on your location) from your electric main to a lower voltage (usually 12 volts). There are many different varieties, so it is important to do your research. Some transformers have sensors that detect sunlight so that they automatically come on at dusk. However, many people have complained that the light sensors activate even when the sun goes behind a tree or cloud. So if you have many trees in your yard, you might want to consider getting a transformer where you manually set the time it will come on each evening. There are several things to consider when selecting a transformer.  Make sure to buy a transformer that can handle the lighting load you need it to. A transformer will be rated at a certain wattage; make sure that the wattage of your transformer exceeds the sum of the wattages of all your lights. Consider what kind of power switches the transformer has. Some transformers will have built-in timing switches to help you create a schedule for the lights to turn on and off. Others will have a  photo cell that can determine whether it is dark enough out to cycle the lights on. Make sure to get a transformer that fits your needs. Transformers are installed simply by plugging them into your outdoor outlet, though some larger ones must be mounted on the wall.
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One-sentence summary -- Choose a transformer. Consider the features you need in a transformer. Install the transformer.

Q: You only need a few simple ingredients to make a healthy and delicious broiled or grilled halibut. Here's what you need:  Halibut steaks Olive oil or melted butter Minced garlic Salt and pepper Lemon wedges  If you're grilling your halibut, light your grill. Make sure it is heated evenly before proceeding. If you're using a grill, place them directly on the grill. If you wish, top the butter with a teaspoon or two of minced garlic.  Test it with a fork for doneness. Serve garnished with a lemon wedge.  Cooked halibut will flake away from the fork easily, while undercooked halibut will still feel solid and fleshy. Cook halibut without drying it out by watching the cooking time carefully. Grilled halibut should be cooked for no more than 10 minutes per inch thick.
A: Gather your ingredients. Marinade overnight if desired. Turn on the broiler to heat your oven. Place the halibut steaks skin side down in a glass or metal baking pan. Brush the steaks with olive oil or melted butter. Sprinkle the halibut with salt and pepper. Broil halibut for about 10 minutes. Finished!

Article: Some people want to learn how to swim for general safety reasons. Others want to learn so that they can safely take their kids to the pool. Still others might want to learn to swim in order to conquer a lingering fear from childhood. Understanding their reasons can help you decide how to proceed with the lessons and what skills to focus on.  For example, if your student wants to learn to swim in order to accompany their children to the pool, you might want to spend more time perfecting their freestyle stroke, as this is the best way to reach someone who needs assistance in the water. Helping your student become more comfortable with this stroke can help them feel like they are achieving their goals more quickly. Ask your student about any previous swimming experience. If the adult student already has some swimming experience, ask them to demonstrate some of the skills they already have. Ask them what they feel most comfortable with and least comfortable with so that you can build up their confidence accordingly. Discuss the end results that your student hopes to achieve and come up with a reasonable plan for achieving those goals. Talk about how often you'll meet for lessons each week, whether they should swim on their own for “homework,” and provide a timeline for several important swimming milestones. For example, it might be helpful to plan with your student that they should be able to complete an unassisted lap across the length of the pool by a certain date.
Question: What is a summary of what this article is about?
Inquire about their reasons for wanting to learn now. Assess their current skill level. Create a goal-oriented timeline.