Burns approx. 100 hours and provides 15 ft coverage radius when set on or near ground. Made with essential oil blend consisting of citronella, lemongrass, lime citronella, vanilla and lemon eucalyptus. Smells good to humans but not so much for bugs! Easy to pack 8 oz tin is great for the outdoor enthusiast. Poured half-way full for natural wind barrier. Repels mosquitoes, gnats, ticks, black flies, fruit flies, and no-see-ums.