I purchased these just over 30 days ago. They recently leaked water into the lights and are now not working. Since it is outside the 30 day window I do not have the option to get a replacement. Very disappointing service for a product 30 days old. I would not recommend this product based on this. Update.... Customer Service reached out to me and offere a replacement and gave me some pointers on installation. So far so good. Thank you for the excellent customer service!I bought 8. They all work as advertised. I wish the length of time they stay on after detecting motion (mode 1) was adjustable. That would be even better as 30 seconds is ok, but....In any case... recommended. Ended up buying 8 and spacing them out.i ordered two sets (4) lights. Two of the lights were illuminated when i opened the box.... not sure if that means that these were a returned item, but they seemed to take the solar charge and were reacting to motion. Instructions said to fully charge 8 hours before using, which is why illuminated (new) lights did not make sense to me.then - one set of the lights started blinking for no reason... i am still observing the working of the lights to see if there is a defect. Detecting problems takes some time of use.... just hoping to do the job and don't break after the return window closes...I could of give overall of 5 stars but when the light ran out of power, it looses memory setting and requires to select mode again when night fall.... kind of annoying.I purchased this product a month ago to deter people from parking in front of our yard during the night. This area is dark because there is no streetlight and my neighbor's tree blocks the only light nearby. It causes the area to be extremely dark at night. For safety reasons I thought it was necessary to light up the area. We would get up in the morning to find garbage, and other "unmentionable items" thrown in our grass from people who would use the area as a place to stop and stay until they finish doing whatever.In the daytime, the lights get direct sunlight all day. At night it is really bright, lighting up the entire sidewalk whenever motion is detected (people or cars). We have not seen anyone parking/stopping in this area since I had this light installed. I am installing the 2nd one in my yard over the garage, to deter the night animals.Perfect and bright solar light. I have a detached garage and this light illuminated the whole garage front in a wider way. The second light light up the side walk along with the yard brightly. I was worried and was thinking this light won't be much enough light in front of the garage. But I was wrong. Both light came with perfect packing and have all accessories to install. Very easy to install and have 3 different light settings. The remote is very helpful so that we can adjust the light settings from far. I am completely satisfied with the purchase of this solar outdoor light. Highly recommend this set of light for any body those who are looking for a decent bright out door solar light.I needed solar lights for my garden area that would be bright, efficient, and cover a wide range and I am so glad I chose these!! They are super bright, and I love the flexibility of the device itself in the sense that it can be manipulated in so many directions based on your need. Only thing I can think of for future improvement is to have the lotion detection feature lash longer than it does now.I ordered 4 units. They took about 10 minutes each to install with a drill and a Phillips screwdriver. They work well. I love the flexible head: the lights wrap around almost 360 and it gives plenty of light.I liked them so much I bought 2 more to fill in other areas. I recommend this product.