"I haven't had issues with this product yet, I have been placing this heater in with my leopard geckos and haven't had issues yet. They seem to enjoy laying on it periodically and I haven't seen hot spots, or areas getting too hot where they burn my reptiles. I'm still skeptical about this product but it appears to be much better quality and working a lot better than other heat rocks I've had or seen before.
Obviously this shouldn't be used a primary heat source!!!!"