The lights I am using are made by Westinghouse. They are "Westinghouse Solar Torpedo Spot Light".
They are no longer available at Home Depot. If you have a Menards near you, they are available there.
According to some web searches, they are also available at Sears.
Here is a photo of 1 light, but they come in a 2-pack for about $8.00 for the two.
These also have an ON/OFF switch located under the solar panel. I shut them OFF when I store them between camping trips.
As a side note, I replaced the lower capacity rechargerable batteries with higher capacity rechargeable batteries rated at 1650mA.