This is a very good set of lights for the price when I was looking to buy these I did not see a review to help me so I'm telling you this they are very bright and a good value you will need to do some very basic wiring to put them in but I would most definitely order again ?Great for illuminating the water in front of the yak so you can tell if there is obstructions (dead heads, rocks, etc) coming up in front of you. Plus, in shallow water you can actually see fish and more importantly, bait fish. One thing I didn't like was the green light on the interior of the yak, so I pulled those out. They just didn't provide enough light to see well enough to tie rigs or deal with fish at night. The amber ones are much more conducive for interior lighting.OMG! These lights are very bright, I would highly recommend ,only reason I gave it a 4 is because there are no instructions and I all most burnt my kayak down, luckily I look up a wire chart on a Web page ,and as for the 3mm tape ...like super glue very strongVery impressed. I was worried about how bright the lights would be with a 9 volt battery but they are very bright. I have a 10ft kayak and put them on the front. Just ordered second set for side. You will not be disappointed. The tape backing is very strong so make sure you get them where you want them before taping. They will not come off. My order arrived in two days and made it earlier than expected. Great company.Good and bright and great price but tape dosent hold well.Work goodthey were confusngJust what is described by seller. seems to be very heavy duty