The light fixture mounts on a plate that rests on the inside of the toilet lid. The mount lets you adjust the light on the fly, up and down, and is removable to change the batteries. That being said, if the seat gets slammed down, the light fixture can fall into the water, and if left in there too long, will compromise the internal wiring and stop working. Kids are going to slam it shut and sometimes not flush so ours went into pee and stopped working within a week. Good luck….They should make these waterproof. Also, the target looks more like and iron cross than a bullseye/target which is off putting. LOL. Seriously, tellme you don’t see an iron cross. When working, it functions as desired.

I have 3 boys under 8. I immediately went from having pee messes to clean up almost daily to about once every 3 weeks. That is well worth the price in my book, just get it already!A few things to be aware of:- Good strong adhesive tape means you only have one shot to get it on in the right place. Don't mess it up.- I may have place mine too low (close to the seat, vertically) but I was trying to match the picture on the listing. As an adult using that toilet in the sitting position you may get stabbed in the back with the unit rather unpleasantly. An update would be if you resigned the mounting bracket to be lower profile so that the unit could be taken off and not have a big bracket sticking out, for when guests are over or something.- The timer for how long it is on after sensing motion seems short. I know it saves power, but I'd rather have it go longer and change the batteries more often. I haven't heard anything from the boys, but I know it shuts off while I am using it and that will make you want to move around to get the target back on. That can be a dangerous game to play.- 4-6 weeks sounds like the average battery life. That's fine. The biggest problem is how hard it is to change the batteries. You have to remove the unit from the bracket (don't drop it in the toilet!), Then remove the 3 small screws from the back. These screws are very small and very tight. Unfortunately they are cheap, soft metal and mine are already rusting after 6 weeks. These need to be a high quality stainless steel (this is installed on a toilet!) and bigger screws would be nice so you don't have to use a tiny screwdriver.- the final negative is that it is not waterproofed at all. The holes for the mounting bracket are not even closed, so if you drop it when changing batteries it has two gaping holes into the unit.All that being said: buy it. Still totally worth the price, even if it only works for a month, that's like 15-30 pee messes I don't have to clean up. I will be getting some stainless steel screws for it though.For the product development team:Version 2 updates.- low profile mounting bracket that clips in vertically.- mounting placement instructions- sealed unit. Fill in the holes on the side (no longer needed with the new mounting bracket) and use a seal between the two halves.- create a loose fit hinge point at the top of the unit and go from 3 tiny screws to one or two P2 stainless steel screws on the bottom. Use the hinging action and pressure to activate the seal so the unit is water tight, and easier to change the battery on. You may even be able to use a clip on the bottom and avoid screws to hold it together completely.- increase how long the light stays on. A switch with different time intervals would be nice, but sounds expensive and most people would only use it once if at all. If the batteries are easier to change people don't mind doing it more often.Feel free to reach out.

With two boys in the house, let's say cleaning the floor was a multi-time a day cleaning process. We had a shield on the toilet, but it needed to be cleaned regularly as the back was their target (but at least not the floor). I tried this on a whim, as cheerios or such did not seem to interest my kids, I was not 100% sure it would work. Easy to install, stays in place, battery last (one supplied is short-lived, but replaced Duracell and such last a long time). My oldest (the missing king) dismissed it at first and says he does not need it, why is it here, I am big... Well, he seems to use it subconsciously. I love that you can alter the angle also. The light is bright, but it's easy on the eyes. Replaces a night light in our bathroom at night as it does double duty. For guests, it is a fun bathroom adventure for guys without kids too. It is a little pricey, but it is well made and seems to be a small business, so it is a fair trade-off. Would recommend.

I could literally weep tears of joy over how well this works. I was bleaching down my ENTIRE bathroom every other day, pee on the walls, the toilet tank, the floor, the trash can, the side of the tub, the ceiling (?!??) Okay maybe not the ceiling but it FELT LIKE IT. Pee EVERYWHERE EXCEPT IN THE TOILET. I couldn’t enjoy baths, heck, I couldn’t even USE the hall bathroom without gagging. Having guests over was embarrassing. I was fighting a losing battle and was ready to just coat the whole room in Teflon and install a drain in the floor, I was SO DONE. I was looking for something to help, and saw this. I balked a bit at the price but then figured it was worth it since my eventual pee-triggered insanity and subsequent institutionalization would be far more expensive than $36. JUST BUY IT. Buy one for every bathroom in your house. Buy them for every household your child spends any significant time at. Buy them as baby shower gifts. JUST BUY IT, IT IS WORTH WAY MORE THAN $36, it’s a LIFESAVER worth every penny and then some. Don’t get the cutesy cheap ones with silly images that will break after one use. This one is sturdy, perfect, and if it weren’t affixed to the back of my toilet seat I’d kiss it in gratitude. Just buy it. I’m now only cleaning my bathroom once a week like a normal human and not every 36 hours like some Howard Hughes wannabe. My kid never misses the bowl, his friend thinks a cyborg lives in our toilet, and I am so happy to not be losing my dang mind over toddler pee. Spring the $$$, you won’t regret it.