Woot offers DynaTrap F14280 XL Insect Trap 1/4 Acre with Extended Life and UV LED Bulbs (Pick Color) for $30.99. Free shipping for Prime Members.

*Also available:

• DynaTrap F13873 XL Insect Trap 1/2 Acre with Extended Life and UV LED Bulb (Pick Color) for $55.99
• DynaTrap F13874 XL Insect Trap 1 Acre with Extended Life and UV LED Bulb (Pick Color) for $79.99

Product Description:
Nope. No buzz at all. That's because the DynaTrap XL does all the trapping without any zapping.
Mosquitos, wasps, beetles, and flies are no match for this device. Using a combination of ultraviolet LED bulbs, a carbon dioxide coating, and a built-in fan, DynaTrap® keeps flying pests at bay. Hang it, mount it, or place it on a flat surface where bugs tend to linger. Our favorite part? They're kept away without the use of harmful pesticides.
Enjoy being outside again. Dine on the deck, plunge into the pool, or simply relax in the fresh air. It's time to take back your yard -- without constantly wishing (or swatting) away those unwelcome pests! From DynaTrap®. 

• Includes DynaTrap XL insect trap, UV-light LED AtraktaGlo light, mounting bracket, and brush
• DynaTrap produces carbon dioxide which is the same gas exhaled by humans during respiration and is the primary source of attraction for mosquitos
• With its warmth, light, and carbon dioxide emitted, DynaTrap effectively attracts and captures a wide range of insect species
• DynaTrap UV-Light LED flying insect traps can reduce the populations of nuisance insects without the use of pesticides
• DynaTrap UV-Light LED AtraktaGlo® lamps last approximately 6.5 times longer than their standard UV fluorescent lamps: 20,000 hours/27 months vs. 3,000 hours/4.03 months
• Note: Bulb is replaceable and sold here
• For indoor/outdoor use
• EPA Establishment Number 088119-CHN-001
• Approximate measurements: DynaTrap 8.1" x 8.1" x 10.6"; Cord 10'L
• Weighs: 1 lb, 13.6 oz
• ETL listed
• Imported