Color Changing Solar Deck Lights, 16 Pack Waterproof LED Lights for Decks, Stairs, Fences, Yards and Patios -

4.0 out of 5 stars Nothing special but works well for the money Seems to work well for the money – nothing special about the craftsmanship or build quality to admire but it gets the job done. If it gets a couple hours of sunlight during the day it can last pretty much throughout the night and it’s a good brightness level for an accent light or for illuminating a stairwell. Like others have mentioned it is better to put these on the sides of the stairwell rather than on the steps themselves. This actually lights up the steps better and also the units are not really sturdy enough to be stepped on.I do wish that the unit screwed in from the side rather than from the top, this would’ve made it much easier with my placement at least. The included screws are kind of cheap and don’t seem to engage well with any of the bits I have – I bet the heads will be stripped if I ever have to remove them as the metal used is quite soft.It appears that a single IC labeled YX8051 pretty much handles everything as far as handling the charging and light control.The manual makes mention of being able to replace the battery with a similar one. The unit can be easily opened up by removing two screws and it looks like you could simply swap in a new 1.2V NiMh battery. The stock battery appears to be pretty cheap/basic and is labeled with a 200mAh capacity. In the future if it dies I’ll probably test out replacing this with a higher capacity AAA from Tenergy or Eneloop. It’s probably overkill for the application but it shouldn’t hurt and could potentially give you a bit more of a buffer to power through the cloudy days.I am skeptical of how well these cheap batteries will hold up in extreme temperatures especially the subzero winters here so we shall see.Also it would be great if they sold quantities other than a 16 pack – with only one quantity offered you’re bound to end up with extras laying around.UPDATE: Okay so 80% of these stopped working after one Chicago winter so you best either take these inside during extreme cold temperatures or try to swap in a hardier AAA battery. 21 people found this helpful