Landscape Lighting Tip's from the Pro's at Bloom
Avoid using solar. Solar lights don't last, don't work if it's cloudy, and won't work in shade areas, or be very dim. Solar lights emit only 3-5% of the light that a modern LED fixture emits.
That means even a 3 watt LED is 20x stronger than a solar light. Solar lights never stand up right and can make your yard look tacky. Save yourself the cost and invest in a real LED lighting system.
You don't need an electrician to install low voltage landscape lighting. Because the system is LOW VOLTAGE, it can be installed by you or a landscape professional.
Get a bigger transformer just in case you decide to add more lights in the future. Transformers that come with an extra 50W capacity will often times cost just a few dollars more.
Install two transformers if needed (front and back) to save on wire, this will have no impact on the quality of your LED outdoor lighting system.