
Perhaps which is best comes down to not only personal preference but also how your bitch usually is wihth the pups. With my pugs the Mums are very rarely in the box anyway (not naurally good Mums) and the pups are always happy under the lamp. With the Spaniels, the girls are usually good Mums, and are happy to lie towards the side of the box a little away from the lamp, with pups snuggled into Mum and enjoying some top up warm from the lamp. I get to adjust how warm the puppy area is by being able to raise or lower the amp, and they get to lie in the most comfortable spot for them, by lying close to the warm centre, or more on the edge. I have a heated bed, which is on the same pricipal as a heat pad, and use this during whelping to keep the already delivered pups in whilst Mum is producing another pup. It serves this purpose well, bu does not keep the pups as warm as the lamp.
The ceramic dull emitter bulbs are great, and so long lasting. I bought my first heatlamp and dull emitter in early '90 form Diamond Edge, and did not have to change the bulb until this year, for about 15 years use, admittedly not constant, but still a fair few uses!
bye
Gwen