The Blue light LED lights are as described on the product description page. These are tiny LED rechargeable solar lights. There are 120 tiny blue lights all evenly spaced on 20 feet of wire. The solar dock charging station can be mounted in the ground with the plastic spike that is included or it can be screwed to decking or the house. There is an on/off button is on the back as well as the mode button. These can flash or stay on constant. These can also be set to come on when it is dark outside. I actually had some sun the other morning to charge them for a little bit. When I brought them inside is when I noticed a blue light on the charging port. Upon entering the house the light went off. Easy to charge with solar power and cheap to use with the solar power. I haven’t had these long enough to see how long they last, but I love the little twinkle of the blue lights from them. I received these at a discount for my review.