In this study, a light-driving bug zapper is presented for well controlling the diseases brought by insects, such as mosquitoes. In order to have the device efficient to trap the insect pests in off-grid areas, pulse width modulated light emitting diodes (PWM-LED) combined with a solar power module ...
About using ultraviolet LEDs instead of fluorescent tubes in a bug zapper. PWM'ing them saves power and catches more bugs. I figured it could be of interest here.
Tldr for others: a 0.9W UV LED pulsed with PWM at 50% duty cycle, 64Hz frequency performed the best. Even better than a reference lamp running constantly at a greater total power.
Efficacy was further increased with the use of a wide-angle lens on the LED, too.