Great for the price. They are bright, have options, are easily mounted. You get 4 lights for $10. I easily attached the blue light on my Honda 2hp to make the Costco dinghy “fancy” at night lol. We’ll see how long that lasts....I would pay double the price if they had some effort into making them more water resistant. The only thing holding water out is the silicone case, but I wouldn’t do any dunking on them and I’m planning on taking them off as the dinghy is kept in the water(salt) and I don’t feel like they could even deal with a rainstorm...But, for the price and ease of use. It’s a good inexpensive option. I’ve gone through several sets of regular expensive Marine navigation lights and they don’t usually even make it a year...I would have given these a 5 star but the battery cover is not sealed to be waterproof? Duh! Its for a boat or dinghy, Corroded very quickly.Product is great to light up my kayak at dusk and at night. This was a good purchase and well worth the money!!!These are awesome little lights that we used as a backup when our main bow lights went out during a our last trip to the Bahamas on our 42' sailboat. They worked great through the night and got us safely to our destination where we could order and replace our main lights. They are a great value and worth having on board, esp for us as backup lights!We bought these lights for a nighttime kayak trip. The set includes one clear bright white light and three softer colored lights. We tried them at home upon receiving them and they lit right up. Not so on the very first attempt at actual use. The white light turned into its first super fast flash setting and there it stayed. We could not get the light to shut off or stop blinking. Luckily we had our cell phones so we still had a bright light. The broken one ended up being completely useless and buried in a carry on bag. Lucky for us the night was clear and bright enough to still see. Very disappointing purchase. Would not recommend or buy again.2 of 4 stopped working with nearly no usage. Tried swapping known good batteries in but to no avail. It's potentially a cheap solution for a temporary problem. While YMMV, don't expect alot.I had bought identical looking lights here from Bright Eyes and was delighted. Saw these at a good price and jumped on the purchase. Although these lights look identical to the Bright Eyes ones they're built around smaller less effective AG10 batteries instead of the more powerful and longer lasting car-2032 batteries. For some reason, I haven't figured they fail quite readily and without warning. I had two of the four fail to light right out of the package and now after reading several other reviews have little hope of restitution. I will gladly edit my review upon satisfactory replacements with extra batteries!I bought four of these for my two kayaks. Within days, one of the lights would not turn off. Upon opening the battery compartment, the battery had already started corroding. Weeks later a second light had the same fate. In spite of being billed as marine lights, they do not seem to mix with water well.I ordered this product May 31st. It arrived July 31st. The white light didn’t work, the batteries were corroded inside the unit - batteries had leaked.I replaced the batteries, but the damage was already done to the unit.I checked on the return Policy, but July 23rd was the deadline to return it. This was problematic because it didn’t arrive until July 31st - 7 days too late to do anything about it.I e mailed the seller to ask how they would like to proceed before I wrote a review. As of the time of this review, they have not responded.I do not support the quality of this product. The shipping speed was terrible, and the ability to return it expired 7 days before it actually arrived.BUYER BEEAREI really like these lights. The LEDs themselves are coloured, green, red, blue and white (i.e. they don't rely on the surrounding rubber colour). They seem to last a longtime. I use them as night lights while out walking and found they are easily stored in pockets and then put on fingers on each hand like a ring to warn cars of my presence when I am crossing at dark intersections. They take two AG10 type batteries. They are splash proof but not waterproof. A great purchase.These are perfect for a tin fish boat like my 14’ aluminum. I did have to drill two small holes to fit them onto the front of the boat, but not hard to do. Try them out at night and they are brighter than most boats on the lake!I have bought 2 sets of these for my dinghy. You immediately need to put di-electric compound over any electrical contacts as these are not conformally coated and rust fast. Great idea but needs a higher standard.Order had tracking for the shipment and arrived on time. The lights are great - only a small clip to attach them but flexible cover makes it easy to tape them down so they are secure. Nice bright lights. Good to have proper navigation lights on the canoe for going out on a full moon paddle.