The Flowtron BK40DK Electronic Insect Killer proved highly effective at reducing flying insect populations during testing by Bob Vila, outperforming five other models in bug reduction. Reviewers praised its UV black light and electrified grid design for attracting and killing numerous flying insects including mosquitoes. However, its utilitarian appearance and short power cord create setup challenges. YouTube users confirmed its effectiveness with significant bug collection over two weeks, though some noted the unsightly extension cord requirement. This zapper is best suited for large outdoor areas where insect control is needed but may not appeal to those prioritizing aesthetics.
Full review
Superior insect attraction capability
The Flowtron Electronic Insect Zapper demonstrates exceptional performance in attracting flying insects, with multiple reviewers documenting immediate and sustained results. Within minutes of being plugged in, the zapper begins registering kills, with one reviewer noting that 'just minutes after being plugged in, the zapper began registering kills.' The device's UV black light bulbs effectively draw in insects from a substantial area, with the zapper capable of covering up to 1 acre of outdoor space. The attraction mechanism works through a combination of black light and octenol bait pack, which together create a powerful lure for mosquitoes and other biting flies. Reviewers consistently observed that the zapper draws insects from considerable distances, with one reviewer noting that the device attracted hundreds or even thousands of insects per night, particularly in areas with high mosquito populations.
The effectiveness of the zapper's attraction system is further evidenced by the volume of insects captured over time. A reviewer who tested the device for two weeks reported that a simple cup placed beneath the zapper filled completely with insects, including numerous mosquitoes, moths, and flies. The device's ability to attract insects was so strong that it drew in large numbers of pests that were otherwise difficult to control, with one reviewer noting that the zapper was particularly effective in areas where insects were congregating in front of the house. The zapper's design allows it to function as both a standalone insect killer and as part of a broader pest management strategy, with reviewers noting that it significantly reduced the number of insects entering their living spaces during peak activity hours.
High-voltage killing grid performance
The Flowtron's electrified grid system delivers consistent and effective insect elimination, with multiple reviewers documenting the immediate and complete destruction of captured insects. The zapper's 5600V instant killing grid ensures that insects are dispatched quickly and thoroughly, with one reviewer noting that the device produces a 'sizzling pop' for each insect it claims. The high-voltage system is designed to kill insects instantly upon contact, with the electrical discharge being both powerful and efficient. Reviewers have consistently reported that the zapper's killing mechanism is highly effective, with insects being eliminated without the need for additional treatment or disposal methods.
The zapper's ability to kill insects efficiently is further demonstrated by the amount of insect remains found after use. Reviewers noted that while the device disintegrates smaller insects into black dots, larger insects such as mosquitoes and flies remain visible as evidence of the zapper's effectiveness. One reviewer who tested the device overnight reported that the zapper successfully eliminated numerous insects, with the remains of smaller insects being found scattered beneath the device. The zapper's design ensures that insects are killed on contact, with the electrical grid being positioned to maximize the capture of flying insects while minimizing the risk of injury to users.
Outdoor setup and installation challenges
Setting up the Flowtron Electronic Insect Zapper requires careful consideration of electrical access and placement, with reviewers noting the limitations of the included power cord. The device's power cord is less than a foot long, requiring users to employ extension cords to reach nearby outlets, which creates both aesthetic and safety concerns. One reviewer reported having to use a 40-foot extension cord to plug the zapper into the nearest outdoor outlet, creating a tripping hazard and an unsightly appearance. The zapper's design includes a hanging ring at the top, but the short power cord limits placement options, particularly in areas where outlets are not conveniently located. Reviewers noted that the device's setup process is straightforward but requires some planning to avoid electrical hazards.
The zapper's installation process is further complicated by the need for proper positioning to maximize effectiveness. Reviewers recommend placing the device at least 30 feet away from outdoor living spaces to avoid creating a pest attraction zone near the home. The zapper's hanging mechanism works well with bird feeder hooks and similar outdoor structures, but the limited cord length makes it difficult to position the device optimally. Some reviewers noted that the device's appearance is utilitarian and may not complement all outdoor décor, with one reviewer commenting that the zapper's 'lamp brightness, long cord, and utilitarian looks detract from outdoor living space aesthetics.' The device's setup process is simple but requires users to consider both electrical access and optimal positioning for maximum effectiveness.
Long-term maintenance and replacement requirements
The Flowtron Electronic Insect Zapper requires regular maintenance and component replacement to maintain optimal performance, with reviewers noting that bulb replacement is necessary after extended use. The device's UV black light bulbs are designed to last for extended periods, but users must replace them periodically to maintain effectiveness. Reviewers have documented that bulb replacement is a straightforward process, with the zapper designed for easy bulb access and replacement. The octenol bait pack, which is essential for attracting mosquitoes, lasts approximately 30 days and requires regular replacement to maintain the zapper's effectiveness. One reviewer noted that the replacement cartridge costs about $15 for a three-pack, making it a relatively affordable ongoing expense.
The zapper's maintenance requirements also include regular cleaning to remove insect remains and debris, with reviewers noting that the device's design allows for easy cleaning. The zapper's grid system can accumulate insect remains over time, requiring periodic cleaning to maintain optimal performance. One reviewer reported that the device's grid system could be cleaned by simply shaking or tapping it to remove accumulated debris, while another noted that the zapper's design allows for easy access to the grid for cleaning. The zapper's maintenance requirements are minimal but necessary for continued effectiveness, with reviewers emphasizing that regular cleaning and component replacement are essential for maintaining the device's performance over time.
Environmental impact and safety considerations
The Flowtron Electronic Insect Zapper offers an environmentally friendly alternative to chemical pest control methods, with reviewers noting that it eliminates the need for harmful pesticides or sprays. The device's electric killing mechanism is considered safe for use around children and pets, as it does not release toxic substances into the environment. Reviewers have emphasized that the zapper's method of killing insects is quick and complete, with no lingering effects on surrounding plants or animals. One reviewer noted that the device's electric method is preferable to chemical treatments, as it avoids introducing harmful substances into the air or soil that could affect family health or the environment.
Safety considerations for the Flowtron include proper installation and electrical handling, with reviewers noting that the device should be installed away from areas where people or pets might come into contact with the electrical components. The zapper's design includes a waterproof construction that allows for safe outdoor use, but reviewers recommend that users follow manufacturer guidelines for installation and placement. One reviewer emphasized that the device's electrical components are designed to be safe for outdoor use, but proper installation and maintenance are essential for preventing electrical hazards. The zapper's environmental benefits are further enhanced by its ability to reduce the need for chemical pest control products, making it an attractive option for environmentally conscious consumers.
User experience and effectiveness ratings
Multiple reviewers have rated the Flowtron Electronic Insect Zapper highly for its performance and effectiveness, with one reviewer giving it a 9/10 rating based on its superior performance compared to other bug zappers. The zapper's ability to attract and kill insects is consistently praised, with reviewers noting that it significantly reduces the number of flying insects in their outdoor spaces. One reviewer who tested the device for two weeks reported that it captured hundreds of insects, including numerous mosquitoes, demonstrating its effectiveness in controlling pest populations. The zapper's performance is particularly strong in areas with high mosquito activity, with reviewers noting that it provides excellent protection for outdoor living spaces.
The zapper's user experience is generally positive, with reviewers noting that it is easy to set up and use. The device comes fully assembled and ready to plug in, requiring minimal setup effort. One reviewer noted that the zapper's setup process is straightforward, with the only assembly required being the insertion of the octenol cartridge. The device's operation is simple and reliable, with reviewers noting that it requires no complex programming or adjustments. The zapper's effectiveness is further enhanced by its ability to operate continuously without requiring user intervention, making it a practical solution for ongoing pest control needs.
Strengths
- +UV black light and electrified grid design attracts and kills a lot of flying insects
- +Comes ready to plug in and use right out of the box
- +Capable of covering a large 1-acre area
- +Effective at reducing mosquito and biting fly populations
Watch-outs
- −Lamp brightness, long cord, and utilitarian looks detract from outdoor living space aesthetics
- −Cord extending from the unit is less than a foot long, requiring extension cord use
How it compares
The Flowtron Electronic Insect Zapper stands out for its exceptional 1-acre coverage area and superior performance in reducing mosquito populations compared to the Flowtron Bug Zapper and Residential Bug Fighter, which both lack the same large-scale effectiveness. However, it shares the same aesthetic drawbacks and short cord issues with its counterparts, making it less appealing for users prioritizing appearance or portability.
Rating sources
“I don't see any reason to get a different brand since this one worked so well.”
“it's probably the best bug zapper I've tried lots of them I have one in the front yard one in the backyard and hands down it's the best”
Our 4.7 score is the average of the 3 scored reviews above; 1 more reviewed it without printing a score and is not in the average. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
