yes, the PAR38 infrared reflector lamp is good for piglet to keep warm in the winter, the PAR38 infrared reflector lamp is made of pressed glass, the inside of the press glass is aluminum plated, which will reflective the majority of the infrared ray to the same direction.

Because the pressed glass can keep the most of heat, the heat is not easily radiated, so the maximum power of the PAR38 infrared reflector lamp is 175W. however, the PAR38 infrared reflector lamp is more energy saving than the R40 infrared reflector lamp made by hard glass.