These were easy to install, except that the instructions were sparse and confusing. Finally had to intuit it and study the pictures. The posts are sturdy and shoved into the ground firmly, and so far, despite the high winds we have been having for months (15 - 25 mph with gusts up to 40 at times) have stayed put.I have the lights on the lowest brightness and it is enough to light up my porch area sufficiently for me to step out and see where I am walking. IThese can be wall mounted, and I would like to do that on each side of the garage door eventually. On full bright the light is really strong, but don't know how they would last with lights on full brightness. So far, on low, they last all night, but it is summer, and long days of sunlight. No clouds around here - live in an arid environment. Overall, very happy with sturdiness, ease of operation and degree of brightness.
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