I have my own business and we do many thing and cover many trades from joiners to landscapers and lately we have been asked to do a couple of ponds. I purchased these on the first pond and they are amazing at night, you can change all colours with little remote and they are working perfect top the point I am ordering 2 more sets tonight for this pond we are undertaking at the moment.
I did not place them in the in the middle of the pond walls as it was rock pond built of sandstone walls, I placed them around the bottom looking facing out over gravel and the effect is quality picture will come soon, but they really are nice. I would say a longer cable between each light would have been better as you could do more and place them where you like, short cable sort of stops you from placing as you are pulling lighs out of position, but they are still excellent and if your pond is small and you are thinking of lights then get these you will not be disapointed.
This is of course aslong as they last, as it will be a pain to change them if they dont, well on the last pond it will...?