STEM Flying Insect Light Fly & Gnat Trap Starter Kit - 1 Light Trap + 1 Cartridge
Highly rated
$18.39
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3.8 out of 5 stars with 347 reviews
effectiveness: 2.36 out of 5
quality: 2.85 out of 5
value: 2.62 out of 5
35% would recommend
17 recommendations
2 out of 5 stars
15 February, 2026Verified purchase
The bugs were laughing at me
Didn't catch a single gnat. Not even a spec of dust. I'm very happy other people have had luck with this but the gnats in my apartment were not drawn to it in the slightest.
1 reply from stem Team team - 25 days ago
Thanks for sharing this with us. We're sorry to learn this was your experience. We would expect the STEM Flying Insect Light Trap to attract and trap pesky flying insects 24/7. We value your feedback, as your satisfaction means the most to us. Please give our experts a call at 877-869-7546 (weekdays between 8 a.m. and 5 p.m. CT) and provide reference number: 23069129. We'd love to help you fight bugs with accuracy! – Mindi, STEM Consumer Care
2 out of 5 stars
Thumbs down graphic, would not recommend
12 February, 2026
the light stopped working after a year 😣
stopped working
1 reply from stem Team team - 28 days ago
Thanks for sharing. I'm sorry to hear this happened. We expect the STEM Flying Insect Light Trap to continuously attract and trap pesky flying insects in your home. We’d appreciate the opportunity to learn a little more about this and see how we can help. Please give our experts a call at 877-869-7546 (weekdays between 8 a.m. and 5 p.m. CT) and provide reference number: 23067884. We'd love to help you fight bugs with accuracy! – Mindi, STEM Consumer Care
1 out of 5 stars
Thumbs down graphic, would not recommend
28 January, 2026
Don't waste your money
Doesn’t work at all. Don’t waste your money..
1 reply from stem Team team - 1 month ago
We're sorry to hear this, Michael. We'd expect this to be an easy solution to effectively trap pesky flying insects in your home. We'd like to learn more about your experience so we can best assist you. Please give our experts a call at 877-869-7546 (weekdays between 8 a.m. and 5 p.m. CT) and mention your reference number: 23056684. We look forward to chatting! – Brooklyn, STEM Consumer Care
1 out of 5 stars
25 December, 2025Verified purchase
(no review title)
Didn’t work never caught any. Bought 2 Returned
1 reply from stem Team team - 2 months ago
We're sorry to hear the STEM Flying Insects Light Trap didn’t meet your expectations. It’s designed to help capture bugs quickly when placed in areas with high insect activity, so we understand your frustration. We’d really appreciate the chance to learn more about your experience and help make things right. Please give us a call at 877-869-7546 (weekdays, 8 a.m. – 5 p.m. CT) and mention reference number: 23036409. Hope to hear from you! – Megan, STEM Consumer Care
1 out of 5 stars
Thumbs down graphic, would not recommend
12 December, 2025Verified purchase
Doesnt work
Does not work at all. Did not catch anything.
1 reply from stem Team team - 3 months ago
Thanks for reaching out! We're sorry to hear this. The STEM Flying Insect Light Trap is designed to continuously attract and trap pesky flying insects in your home. We value your feedback and would like the chance to help, as your satisfaction means the most to us. Please give our experts a call at 877-869-7546 (weekdays between 8 a.m. and 5 p.m. CT) and provide reference number: 23027687. We'd love to help you with a science-backed way to keep bugs at bay! – Mindi, STEM Consumer Care
5 out of 5 stars
Thumbs up graphic, would recommend
4 December, 2025Verified purchase
10/10 Must have
This product is amazing! I have small kiddos who constantly leave my doors open in the summer and all sorts of bugs end up in the house. The proof is on the pad with this! It defintely works best at night when all the other lights are off, but you wake up to multiple bugs trapped on the sticky and it feels incredibly successful! Would defintely recommomend and will continue to buy over and over again!
1 out of 5 stars
Thumbs down graphic, would not recommend
29 November, 2025Verified purchase
(no review title)
I had this in three different spots over two weeks and it only caught two fruit flies. Meanwhile if I left my coffee out for two minutes I’d find five flies in it. Don’t waste your money
1 reply from stem Team team - 3 months ago
Thank you for letting us know, Aimee. We'd expect this trap to effectively attract and trap pesky fruit flies. This trap works best when placed in areas with heavy insect activity. As your experience wasn't as expected, we'd appreciate the chance to make this right. Please give our experts a call at 877-869-7546 (weekdays between 8 a.m. and 5 p.m. CT) and mention your reference number: 23015350. We look forward to hearing from you! – Brooklyn, STEM Consumer Care
1 out of 5 stars
Thumbs down graphic, would not recommend
27 November, 2025Verified purchase
(no review title)
attracts moth, not fruit flies. just get a some fly strip.
1 reply from stem Team team - 3 months ago
Thanks for reaching out! We'd expect this to be effective against pesky fruit flies. For best results, place this in areas where insect activity is the heaviest. That said, your satisfaction is important to us and we want to make this right. Reach our experts at 877-869-7546 on weekdays between 8 a.m. and 5 p.m. CT. Be sure to mention your reference number: 23015343. We look forward to your call! – Brooklyn, STEM Consumer Care
1 out of 5 stars
Thumbs down graphic, would not recommend
17 November, 2025Verified purchase
Dont work
Don’t work
1 reply from stem Team team - 4 months ago
We're sorry to hear the STEM Flying Insects Light Trap didn’t meet your expectations. It’s designed to help capture bugs quickly when placed in areas with high insect activity, so we understand your frustration. We’d really appreciate the chance to learn more about your experience and help make things right. Please give us a call at 877-869-7546 (weekdays, 8 a.m. – 5 p.m. CT) and mention reference number 23004268. We look forward to helping you get back to bug-free living! - Megan, STEM Consumer Care
5 out of 5 stars
Thumbs up graphic, would recommend
19 October, 2025Verified purchase
Buy it
These are amazing you’ll catch bugs you never knew you had! Cryptonite for fruit flies!
1 out of 5 stars
Thumbs down graphic, would not recommend
18 October, 2025Verified purchase
(no review title)
I’ve had this plugged in for 4 days and have gotten zero flying insects!! I bought this because of the relatively favorable reviews and wanted something “cleaner” but I will be shopping for something else! I would not recommend this product to anyone!
1 reply from stem Team team - 5 months ago
We're sorry to hear about your experience, Kelsey. We'd expect this to attract and trap pesky flying insects in your home when placed in areas with heavy insect activity. However, as this wasn't the case with your purchase, we want to make this right. Please reach our experts at 877-869-7546 (weekdays between 8 a.m. and 5 p.m. CT) with this reference number 22982364. We look forward to your call! – Brooklyn, STEM Consumer Care
5 out of 5 stars
Thumbs up graphic, would recommend
9 October, 2025Verified purchase
run and buy!
10/10 recommend! If you have gnats, buy this! It works. I brought two & placed in my home, I move them around if I see gnats in another room & it catches them!!!
1 out of 5 stars
Thumbs down graphic, would not recommend
5 October, 2025Verified purchase
What a bunch of crushed dreams.
Garbage! I can’t believe this thing has good reviews. Maybe I’ve got the world’s smartest fruit flies because after 3 days of having this blue light going I’ve caught a grand total of 0 fruit flies and it’s not for lack of them around the light. I’m flabbergasted and annoyed and still hosting a fruit fly slumber party in the kitchen.
1 reply from stem Team team - 5 months ago
We're sorry to hear those pesky fruit flies are still hanging around. We anticipate the STEM Flying Insects Light Trap to quickly capture them when placed near high insect activity. As this doesn't seem to be the case, we'd like the chance to chat and make things right. Give us a call at 877-869-7546 (weekdays, 8 a.m. – 5 p.m. CT) and mention reference number: 22971366. We look forward to getting your space back to bug–free! – Megan, STEM Consumer Care
1 out of 5 stars
Thumbs down graphic, would not recommend
2 October, 2025Verified purchase
Doesn't work
It’s been a week and I still have flies
1 reply from stem Team team - 5 months ago
We're sorry to hear about your experience with STEM. When plugged in near areas with high insect activity, we anticipate this to quickly capture those unwanted pests. As this doesn't seem to be the case, we'd appreciate the chance to chat and learn more. Feel free to give us a call at 877-869-7546 (weekdays, 8 a.m. – 5 p.m. CT) and mention reference number: 22969005. Hope to hear from you! – Megan, STEM Consumer Care
1 out of 5 stars
Thumbs down graphic, would not recommend
2 October, 2025Verified purchase
Doesn't work
We have so many flies in the house we can’t even count them. Plugged this in and 2 days later not a single fly has been trapped.
1 reply from stem Team team - 5 months ago
We're sorry to hear about your experience with STEM. When plugged in near areas with high insect activity, we anticipate this to quickly capture those unwanted pests. As this doesn't seem to be the case, we'd appreciate the chance to chat and learn more. Feel free to give us a call at 877-869-7546 (weekdays, 8 a.m. – 5 p.m. CT) and mention reference number: 22968999. Hope to hear from you! – Megan, STEM Consumer Care
3 out of 5 stars
Thumbs down graphic, would not recommend
29 September, 2025Verified purchase
Its Okay
I bought this one because it was a bit cheaper. The blue part isn’t connected to the light and is extremely sticky. It sticks on stuff super easily. Has not worked that well, so I went and bought the more expensive one and it has worked wonders compared to this. Mine also had a funny smell being plugged into the wall for couple hours.
3 out of 5 stars
Thumbs down graphic, would not recommend
28 September, 2025Verified purchase
Not what I thought
Maybe has caught 3 gnats . Saw two gnats chilling on the wall near it . SMH
1 out of 5 stars
25 September, 2025Verified purchase
Nope!
Waste of money, does not work.
1 reply from stem Team team - 6 months ago
We're sorry to hear this trap didn't meet expectations. The light trap is designed to capture pesky flying insects without the use of insecticides and allows for continuous attraction as long as its plugged in. We'd appreciate the chance to help and make this right. Reach our experts at 1-800-558-5252 (weekdays between 8 a.m. and 5 p.m. CT) and provide your reference number: 22963922. We look forward to your call! – Brooklyn, STEM Consumer Care
3 out of 5 stars
Thumbs down graphic, would not recommend
23 September, 2025Verified purchase
Not worth it
Worked for a week not worth buying refills.
1 out of 5 stars
Thumbs down graphic, would not recommend
22 September, 2025Verified purchase
Not Effective
It’s been plugged in for a week and can’t catch a single thing. I’ve moved it multiple times.
1 reply from stem Team team - 6 months ago
Thanks for sharing this with us. I'm sorry to hear this was your experience. We expect the STEM Flying Insect Light Trap to continuously attract and trap pesky flying insects in your home. We value your feedback, as we want to provide you with nothing but the best products. We’d appreciate the opportunity to learn a little more about this and see how we can help. Please give our experts a call at 877-869-7546 (weekdays between 8 a.m. and 5 p.m. CT) and provide reference number: 22960157. We look forward to chatting with you! – Mindi, STEM Consumer Care