No chemicals, no harm, it uses 365nm wavelength light to attract mosquitoes or other flying insects for your farm use. Choose it and enjoy it now! Features: 365nm stable wavelength black light is capable of attracting diverse kinds of insects. High protein insects which can feed fish, shrimp and poultry, make them plump after trapping by light, reduces feed expenditure and cost-saving. Black light insects trap lamp can effectively control the occurrence of farmland pests and save the purchase cost of pesticides. A C110V input voltage, 20W low consumption, E27 universal base, spiral shape design, it is practical and convenient use. Made of superb reliable material, it is long-lasting use. Specifications: Input voltage: A C110V Consumption: 20w Base socket: E27 Wavelength: 365NM Item color: Black Material: PBT+ Item size: 135 * 42mm/ 5.3 * 1.7inches(Height * Diameter) Package size: 145 * 45 * 45mm/ 5.7 * 1.8 * 1.8inches(Length * Width * Height Package weight: 80g/ 2.8ounces Packing list: 1 * Bulbs