Zoo Meds Creatures Combo Dome Lamp Fixture is two combined 3.5" dome fixture for nano-size terrariums (10 gallons or smaller). Ideal for small geckos, hatchling reptiles, amphibians, tarantulas, insects and other invertebrates. For use with Creatures lighting products and Zoo Meds Nano lighting and heating products (Lamps not included). 40 watts maximun.