STEM Light Trap Attracts and Traps Flying Insects Starter Kit 1 Device &1 Refill New STEM Flying Insect Light Trap is an easy, mess-free option for attracting and trapping a variety of flying insects like fruit flies, gnats, mosquitoes, and moths. Use this discreetly-designed fruit fly trap in any indoor room where insects are present, especially around fruit, trash cans, garages and entryways. Enjoy the odor-free, soft blue light technology that traps insects with no chemical insecticides. We crafted our moth and mosquito trap to be people, plant, and pet-friendly* for 24/7 continuous attraction. It's easy to use and install. Simply remove protective peels, insert the dual-sided adhesive cartridge into the flying insect trap base, plug in to the wall, and position using the customizable 90-degree rotating plug and leave on 24/7. No need to touch any bugs or get your hands sticky. Replace the cartridge every 14 days or when cartridge is full of bugs. This bug trap is compatible with Raid Essentials light trap refills as well.