Very small dual-lamp fixture for nano-sized terrariums (10 gallons or smaller). Ideal for small geckos, hatchling reptiles, amphibians, tarantulas, insects, and other invertebrates. For4 use with Creatures™ lighting products and Zoo Med’s Nano lighting and heating products Two 3 1/2 inch Domes Maximum combined wattage – 80 watts (40 watts max per socket)