the 250 watt red infrared heat reflector bulb is R40 or R125, which is made of hard glass, the power can be up to 375W, the maximum power of PAR38 or BR38 is less than 250W.

For 250 watt red infrared heat reflector bulb, the red on the hard glass is roasted red, not painted red,  the painted red is cheap, but the painting will volatilize when working.

The 250 watt red infrared heat reflector bulb is widely used for piglet rearing, poultry breeding. etc.  it is a economy way to avoid the animal freeze to death during winter, and increase economic benefits.