STEM Flying Insect Trap - Indoor Fruit Fly & Gnat Catcher for Home, Kitchen & Any Room, Attracts & Traps Bugs, Soft Blue UV Light - Includes 2 Plug-In Devices & 2 Cartridges

I purchased my first set of this specific brand thru a different retailer when they were on sale. They worked so well I had to order refills almost immediately and then bought two more of these devices from Amazon. When I initially set up the devices, I waited 24 hours to see if they caught anything. The sticky pads were completely clean. I filed a return request and then packed one up. I moved the other device to a different room, just in the hopes that maybe, MAYBE it'd catch something there. And boy did it. Holy smokes. The other one caught so many flies it looked like the sticky pad had been dipped into a jar of flies (where my Alice in Chains fans at? lol. But seriously...). I cancelled the return request, unpacked the second device and moved it into different room than where I had placed it previously, where it ended up working very well too. Here's some advice if you're not having luck with these: 1) Place the device in a room where it won't be competing with other light sources, especially sunlight. For instance, there're no windows in my bathrooms, neither one gets very much light from any nearby windows, and it is absolutely comical how many flies the devices catch in there. When I initially set them out, they were in my kitchen, which is open to the living room with a large window in it, so they both receive a lot of light for nearly 2/3rds of the day, so these devices did not catch anything there. 2) To really be effective against fruit flies, take away competing temptations such as food and places to lay eggs. And I do mean FORGET the finicky home made vinegar traps that seem to trap only a few, less evolved flies dumb enough to try to land directly on the liquid, and just feeds the rest (who thank you, btw). If it's possible for you, store fruits and veggies that you might typically keep out on your counter or wherever in your fridge until the population has been reduced. If you are able, only throw "dry" trash away in your trash bins (non-food related paper type stuff), and throw "wet" trash such as food discards and wet paper towels into smaller grocery bags (maybe double bag it tho) and place that bag in the refrigerator or freezer, somewhere where it's not coming into contact with food and beverages, until you're ready to put it outside your home to be collected. And if you're wondering what to do for areas that do have competing light sources, personally I use the SafeHome uv type devices and they work very well where the STEM ones don't. Or, get yourself a nice fly swatter, wait for them to congregate on a window or a large white surface during daylight hours and then smack the crap out of 'em. You'll of course need some glass cleaner and newspaper or other wipes to clean the surface afterward, but such is the price of fruit fly war. I hope this helps!

These are a lifesaver when I’m growing plants indoors until our last freeze. Gnats were everywhere!!!! These traps are not harmful to humans or pets. There is no mess and no icky odor. Just plug in and let them work! Will highly recommend and will purchase refills again!

Works pretty well... always have some little annoyance (flies, gnats, etc) stuck to it.

I'd show you pictures, but its nasty. Really gross. And a lot of em. Better than relying solely on Chance encounters with the window stickys. But could we have a bit more packaging please STEM? I just don't know if there is enough packaging. Maybe put it in a small car and deliver it on a flatbed truck next time? Geez what you do STEM cut down your own very specific forest to make your boxes?

I've used the product for a couple of weeks and placed one in the bathroom and one in the kitchen. I've only caught one small gnat in the kitchen. During that time, I manually caught two in the kitchen and three in the bathroom. I noticed that the one gnat in the bathroom was about 18 inches from the device and did not seem to be at all attracted by the light. The product did not work for me. I'd return it but I did not keep any of the packaging.

Easy to use, can also double as a night light. Easy to replace sticky part. No spillage as with liquid based traps.

Hello from AZ--I woke up with mosquito bites on my arms and face! I had already tried several electronic devices to the tune of $70, with minimal to no success, and went back to citronella candles outside my doorways--not great. These bug traps are really effective--a little pricey, but worth it--I haven't been bitten since I plugged them in! I have one near my bed, and 2 others in my house. All you have to do is check the trap to see what is NOT crawling on you while you sleep--whew!

Ease of use & very effective.