These lights are absolutely amazing! We used liquid nails  velcro tabs to stick them to the block wall so we can still remove them  change the lights to warm or color.
These last for a very long time, we woke up at 2 am and they were still ver bright.
We use some also in our planters to shine on our roses  love that they are fully waterproof so I don’t have to move them when watering. 
Good quality  highly reccomend these…if your thinkjng of buying them, you won’t be disappointed.
Thanks Wayfair for a quality solar light!