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Step 1
Note the number of fixtures and total wattage you will be using. Power supplies come in various sizes depending on your lighting needs. Add the wattage for all the lights and select a power supply big enough for the job.
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Step 2
Shop around to find the appropriate transformer. The transformer manages and distributes all of the incoming power to the lights. Therefore it is very important to choose a transformer that is fit for the job. It should accommodate the wattage and send power to all of the lights you choose.
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Step 3
Find a cable that is long enough and powerful enough to handle the job. The cable will run to your electrical supply coming from your house. It should be long enough to reach the transformer and at a high enough gauge to handle the wattage.
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Step 4
Look into a kit purchase for your timer. Some popular kits include dimmers, timers and motion sensors. Depending on your needs you may want to invest in all or none of these options for your outdoor lighting system. It's best to think if these will get use or not at your home.
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Step 5
Browse around at local hardware and electric stores to find the best selection and value. Some items are more readily available online, while others are plentiful in traditional stores. Shop around before purchasing anything.
