Zoo Med Rheostat 150 Watts Brand: Zoo Med Quantity Add to cart ♡ Straight forward and simple to use. Rheostats work like a dimmer switch to regulate the intensity of heating elements. Handles up to 150 watts and can be used with heat pads, incandescent bulbs, hot rocks, and ceramic heat emitters. Recommended products Zoo Med Repti Therm Habitat Heater $54.99 Zoo Med mini Reptitherm heating pad $13.25 Zoo Med 30 to 40 Gallon Heat Pad $17.50 Zoo Med 50 to 60 Gallon Heat Pad $19.75