BIRUGEAR (4 Pack) Solar Powered Square Outdoor Garden Pathway Deck Dock Patio Fence Post Light for 4x4 Wood Posts

Purchased May 2013 Right out of the box one of four had issues, worked only after shaking it, walk away and look at it later and it would be off again. The white color in photo is just painted metal which will rust as mine have. They are NOT waterproof, and surely the water will get in and rust the internal metal tabs that contact the batteries. Plus after just one summer of use they were brought in during winter and when trying to use them again just recently, Just three of the four that worked at fall last year were having issues with them also. The metal tabs that the batteries touch have little bumps to allow contact to be made, and they were dented in , which did not let the batteries make contact = meaning no lights at all on any of the three. I had to take them apart and slightly use a metal rod slightly bigger than the lead of a pencil, and a hammer to indent the metal again to let the lights work. There are three battery's in each light, one battery has an easy access door which is fragile and the other two are behind a little door that you will need to use a Number 0 or number 1 Phillips screw driver to get the door open. If you buy these lights you will have to seal around the solar panel edges with silicone or place plastic . glass , or acrylic over the solar panel and also use silicone to keep the edges from letting water get to any of the four edges of the solar panel. The light is a low hue, just enough to know there is a 4x4 pole below the light, you can not read with this light, nor play cards on your deck. I removed the white painted metal, that is easy just slide the metal off with your fingers. I have recently bought four more, not a gluten of punishment. Just that now that I know what needs to be done to waterproof them and what to look at first if they fail, ( small metal tab indents for batteries not making contact I will have better chance of getting the most out of these lights. Before the first use of the new ones I will place glass or acrylic sheet over the top and use some kind of " Silicone Adhesive Sealant " and maybe add a screw or { bolt and nut } in the corners to keep the new waterproofing lid in place. So all in all low cost lights, one dead upon arrival, and the other three failed within one year - and needed to be worked on by indenting the small metal tabs once again. Not a bright light but enough light to see your feet and whatever else may left on the deck which may trip your feet when walking on the deck. dark at 8 pm and still have light source at 3 am, and even with a cloudy day the batteries still charged enough to light until at-least 11 pm. Two stars because all the issues, { NOT WATERPROOF = come on they are for outside } and yet I still am buying another four set due to the cost being pretty much the best value around. So if you buy these just know what you will have to deal with, I learned the hard way, hopefully you will not have to buy another set next year. Just know you will have to waterproof them ( meaning you will have to work with them to enjoy the low cost of owning these four post cap lights ) .

Instructions: The clear part can be pulled out of the top or bottom (no latches or snaps, just pull). Flip the switch on the inside to turn it on. The light sensor is the solar panel.As shown in the picture, the solar panel at the top is large. Here in Texas in the summer, the batteries last all night. On the inside, the light shines down from the top and at the bottom, there is a silvery (very reflective) pyramid to reflect the light out the sides. The waffle pattern on the sides makes the lights very noticeable. I have 9 fence posts in the back yard, so I ordered one set of 4 to try them out then ordered 2 more sets after I saw that I liked them.Now for the bad points: There are holes on opposite sides of the base to screw it onto your post. The problem is that the base is made out of plastic and does not fit snugly to 4x4 wood fence posts. If you just screw it on, you will most likely crack the base as some reviewers already pointed out. The solution to this is to buy 1/4" flat washers and put 2 on each side between the base and the post. I found the best thing was to tape them in place to hold them on the base until you put the screw in. My last two shipments also had the wrong screws (the heads would go through the holes, so I had to buy screws for them). There is an open cylinder that sticks down in the middle to put the stake into (if you want to stake it down on the ground). Unfortunately this lets the light rock back and forth although that's not really a problem. I also found that 2 of my 12 lights had shorts in the wiring. The problem was that they were not very careful when assembling the units and some of the wires were sticking into the battery compartments and the cover was screwed down on top of them. The battery compartments are also a bit strange with 2 batteries being in one compartment and the other battery beneath another door.I would have given them 5 stars if it weren't for the shorts in 2 of the 12 and wrong screws in my last 2 sets of 4. Overall, I would recommend them though because the price is nice and the light is good.

Got these in 4/2011 and it's now 12/2012. After approximately 18 months, all the lights (15) no longer lit-up (one barely does, but not visible until you remove it and look at the LED directly). As an electric engineer, I decided to look into why and here are my conclusions:Pro - almost no parts, so almost nothing can fail... except an LED, 3 resistors, and 2 transistorsCon - Not weather sealed, so some contacts rusted and had to be cleaned with a bit of coke.No charge regulation (at least I can see), so after year most of the rechargeable battery no longer holds any charge, and all died in 18 months (There are some black goop under the solar cell, may have some parts inside it? didn't check.)Cheap plastic that easily break if you are not careful when opening the battery compartment, making it more vulnerable to condensation and rust. This may be due to aging of the plastic from thermal expansion and contraction after 18 months... definitely can be redesigned to work better though.The plastic became yellow... but that's not too surprising...I give it 3 stars because with new rechargeable batteries all the lights came back to life pretty strongly even after a day of rain, except one where the battery contact spring broke-off... So be prepared to get 3 rechargeable batteries per light every 12-18 months or so, which works out to be around $0.50/mo, not terribly bad.As for replacement batteries... original ones were only 600mAh (not a typo!), 3x per light. I ended up getting Tenergy 2600mAh. 60pcs of Tenergy AA 2600 mAh high capacity NiMH Rechargeable batteries

One of them is blown out already...I'm so upset about that.