I don't have those yet, but I ordered them.
They should be bright and last all nite or for so many minutes till cycling off.
I have the cheap solar lights on the landscaping walmart lowes or HD $3 ea.
They work good for two years or so, then toss.
U can't use the ground lights for security a thief can just throw something over to block the lite or pull them out and toss them
The ones in the pic should be mounted high, there is also the element of surprise.