The Arc 4000, unlike many other budget priced machines, uses a 4000 volt high voltage grid to exterminate flying insects. They are suitable for restaurants, kitchens, food shops etc. where flying insects pose a problem. After the insects have been attracted by the high output UVA lamps, and killed by the high voltage grid, they can be quickly and hygienically disposed of in the large catchment tray. Made for wall mounting, suspending or free standing. With a years guarantee and competitive pricing makes the Arc 4000 a very popular model. Lamps need replacing after approximately 12 months. Replacement lamps are available - Code BL362.