The spectral range of UV-A determines the basic attraction ability. Ultraviolet rays with a wavelength of 365nm cover over 80% of the light-sensitive areas of nocturnal insects (with a peak visual sensitivity of 350-400nm). The coospider Insect Killer Lamp increases the energy density of the 365nm±5nm band to 2.1mW/cm² through quantum dot technology (with a test distance of 1 meter in ISO 29601 standard). The attraction efficiency for Diptera (mosquitoes, flies) and Lepidoptera (moths) is 89%-97% (USDA trapping data for 2023). However, for the order Archotera (crickets), it was only 21%, and for the order Hymenoptera (bees), the actual phototaxis rate was less than 8%, confirming spectral selectivity.
The differences in phototactic behavior cause deviations in key species. Circadian rhythm research has found that the phototactic response value of cockroaches (Blattodea) is only 0.3 (4.7 for mosquitoes), so the capture rate of German cockroaches is less than 5%. On the contrary, the agricultural pest fall armyworm is sensitive to specific 375nm light (tendency index 3.9), and the capture efficiency of standard 365nm equipment for it is only 38%. Actual measurements on Mexican farms show that after adjusting the peak wavelength to 375nm, the average daily catch of fall armyworms increased from 57 to 204, verifying the necessity of precise spectral control.
The energy release pattern affects the capture diversity. Pulse modulation technology (with a frequency of 4Hz and a duty cycle of 30%) increased the attraction rate of female mosquitoes by 65% (compared with continuous light exposure), but beetles of the Bornidae family did not respond to this (the behavioral test response rate was < 2%). The 365nm+405nm dual-band composite light source has expanded the trapping lineage to Coleoptera (beetles), increasing the capture rate from 15% to 44% (data from Brazilian coffee plantations in 2024), while ensuring the safety of beneficial insects such as ladybugs (protection rate > 94%).
Environmental interference factors significantly regulate the actual effect. When the moonlight illuminance is greater than 0.3lux, the lamp attraction efficiency decreases by 32% (phototactic competition effect), and when the temperature is lower than 18℃, the moths ‘activity decreases by 71%. The intelligent mode is linked through sensors:
When the moonlight intensity exceeds 10%, the UV intensity will be automatically increased by 20%
Activate the heat source (40℃) in an environment of 14-18℃ to compensate for the inertness of the insect body
The Hokkaido Agricultural Technology Center in Japan confirmed that this strategy optimized the standard deviation of capture stability in low-temperature areas from ±31.7% to ±9.5%.
Physical capture design indirectly screens insect types. The turbofan system (suction power ≥8m³/min) has an absorption rate of over 90% for insects with a wingspan of more than 10mm, but for small thrips (with a body length of 1mm), due to the aerodynamic avoidance effect, the capture efficiency is only 17%. The mesh aperture (standard 0.6mm) has a penetration rate of 91% for aphids (diameter 0.3mm) and a blocking rate of 100% for earwigs (body width 4mm), forming a natural physical filtering layer.
Biosafety protection limits non-target capture. The dynamic radar recognizes the frequency of bee wing flapping (200-250Hz) and switches to the safe mode (UV intensity drops to 10%) within 0.3 seconds of detecting the characteristic signal. The 2024 EU organic Farm monitoring showed that the bee population loss rate during the Insect Killer Lamp operation season was less than 0.7%, significantly better than that of traditional electric shock devices (loss rate 19.3%). Full-spectrum data reveals that this technology has a coverage rate of 92% for common sanitary and agricultural pests, but it cannot replace the bait solutions for cockroaches and termites.