STEM Light Trap Refill Cartridges, 3-Count — Insecticide-Free Sticky Pads for Indoor Fruit Fly Control

Keep your STEM plug-in device working at peak performance with these official 3-count refill cartridges. Each refill slips into the STEM Light Trap base and pairs with the unit's soft blue LED to lure and trap mosquitoes, gnats, fruit flies, house flies, and moths. The system is designed to be odorless, mess-free, and free of sprays or chemical insecticides, making it suitable for living rooms, bedrooms, kitchens, and other shared spaces.

How do these refills actually catch insects?

The refills use a combination of visual attraction and an adhesive surface to capture flying pests. The STEM Light Trap emits a wavelength that draws insects toward the cartridge where they become stuck on the tacky surface, keeping them contained until you replace the pad.

• Soft blue LED attracts a range of small flying insects.
• Sticky cartridge captures and holds insects with no sprays or fumes.
• Easy slide-in installation into the STEM Light Trap base.
• Discrete, low-profile operation that runs continuously when plugged in.

How often should I replace each refill cartridge?

Replacement frequency depends on insect activity and where the trap is placed. In moderate household conditions, expect to replace the cartridge every few weeks; in high-infestation areas change it more often to maintain effectiveness.

• Light pest activity: replace roughly every 3–4 weeks.
• Heavy activity: check and replace weekly or biweekly as needed.
• Visible debris or full coverage indicates it's time for a new cartridge.
• Keep spare refills on hand for continuous protection.

Is this safe to use around children and pets?

The refills are part of a non-chemical trapping system and contain no insecticides, sprays, or fumes. While the product is designed to be people- and pet-friendly when used as directed, regular visual checks and proper placement out of reach are recommended.

• Insecticide-free design reduces chemical exposure risks indoors.
• Low-noise operation makes it suitable for bedrooms and nurseries.
• Place unit at standard outlet height and away from curious hands or paws.
• Dispose of used cartridges responsibly according to local waste guidelines.

How do I install and use a refill in my STEM Light Trap?

Installation is straightforward: slide the cartridge into the trap base, rotate the adjustable plug to fit the outlet, and plug the unit in. The soft blue light will then begin attracting insects to the sticky surface.

• Unplug the STEM Light Trap before replacing the refill.
• Slide the used cartridge out and insert a new STEM refill until it clicks into place.
• Rotate the 90-degree adjustable plug to fit the outlet and plug in the device.
• Run continuously in problem areas for best results, checking cartridges regularly.

Who is this for: These official STEM refill cartridges are for homeowners, renters, pet owners, and anyone who prefers a discreet, insecticide-free option for reducing flying pests indoors. They suit households that want a low-maintenance, quiet solution for living rooms, kitchens, bedrooms, and anywhere insects are a nuisance but chemical sprays or visible glue boards are undesirable. Keep a three-count pack on hand to swap cartridges quickly and maintain continuous, unobtrusive protection.