STEM Flying Insect Indoor Trap, UV Light Plug-In, 2 Devices + 2 Cartridges | Indoor Fruit Fly & Gnat Catcher, UV Light Attracts Flying Insects, Plug-In, Includes 2 Device and 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!

I live in the Ozarks, and I am out in the country surrounded by Forest. I have screens on all my windows. Honestly, I got these because my animals go in and out the front door and I’ve seen a few flies. After one week of having these in my home, they looked like this! I never knew I had this many flying insects in my house. I have a total of six of these insect traps placed all over my home and they all look like this. I can honestly say I do not have a problem with flying insects in my home of any kind anymore. I highly recommend these. They work at night when all the lights are off in the house and the blue light attracts whatever happens to be in the home. FYI - I’d get extra refills.

This product DOES NOT WORK! We used these for two weeks, and the insects completely ignored the "blue light"! Either they are highly intelligent, or this product is bogus! Either way! DO NOT BUY! It wasn't even worth the energy to return for a refund.

I ordered 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.The shipping was awesome, and well packaged.The functionality of this product is pretty good and simple, I’ll attach a photo of the few flies we trapped today haha

I don’t know why, but the cartridges this came with were very hard to peel. I’ve bought these before and didn’t have that happen, so maybe it was a fluke with this one, but it took a lot of effort and got my hands all sticky.

Works great, getting a lot of gnats and even caught some flies. It works.

These things really work. The light is a soft blue color that isn't too bright. You're not sure that they really work when you first get one but when you check it a couple weeks later, you see some bugs stuck on it. Each refill lasts a good while. I have 5 of these and plan on buying at least one for each room.

Got a few little bugs after using them for a few days/nights at different locations inside our house. Did not "catch" any mosquitos that have been giving me many bites this past week. I am not sure if I can return these, I definitely will continue shopping for something better from other vendors/stories.