The Zoo Med 25 W Nano Ceramic Heat Emitter gives off 24 hours of intense deep tissue infrared heat lasting up to 5 years, suitable for all reptiles including small geckos, hatchling reptiles, amphibians and invertebrates. This emitter will fit onto nano-sized terrariums featuring a standard porcelain incandescent socket. This quality product is supported by a 2 year manufacturer's warranty.