Most LED lights don't produce much heat or Ultraviolet light, so they generally don't draw many insects. Light draws insects to it. LED lighting produces less heat and the incorrect colors of the visible light spectrum, which means fewer insects are drawn to it. Some LEDs, such as those used in bug light traps, plant grow lights, disinfecting lights, and sterilization lights, are specially designed to generate UV light. Humans are able to perceive light wavelengths in the 400–800 nanometer (nm) region of the electromagnetic spectrum, which runs from violet to red in color but excludes ultraviolet (UV) light at 350 nm. Although they can see in the 300–650 nm range, insects favor the 300–420 nm range, which contains UV light. The Wawelengths lom) most significant element in an insect's attraction to a light is presumably its UV output. The majority of bug light traps use UV/blacklight lamps as their source of attraction because UV light attracts the majority of insects. In general, insects 700 LOOM 500 HODAM 300am see ultraviolet (UV), blue, and green light. Insects are most drawn to lights that are bright white or blue (mercury vapor, white incandescent, and white fluorescent). Most insects find yellowish, rosy, or orange hues (sodium vapor, halogen, or dichroic yellow) to be least appealing.
Insects are drawn to light not only because of its color or spectrum, but also because of its luminosity and heat. The brightness of the light and the sketching distance increase with the bulb's wattage number. Additionally, the quantity of heat produced by lamps with glowing filaments (such as incandescent, halogen, etc.) increases with rising power. Cool lamps that produce light from gas movement (LED, sodium vapor, mercury vapor, fluorescent, etc.)
