HIRs vs Halogen temperatures

Does anyone have actual specifications on the operating temperature of HIRs vs Halogen bulbs?

I saw a website online that claimed HIRs emit less heat than the halogen equivalent. I find that odd considering the design of an HIR is to increase the filament temperature by reflecting light/heat back at the filament...

HIR bulbs don't necessarily use the halogen infrared reflective coating.

The envelope of an HIR bulb of either type should be cooler than that of a standard halogen bulb of the same wattage, as they have a higher luminous efficacy than the standard halogen bulb. More energy being converted into light means less energy being converted into heat.

I find that odd considering the design of an HIR is to increase the filament temperature by reflecting light/heat back at the filament...

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Yes, the infrared reflective ones reflect the heat back toward the filament, meaning less heat is escaping the envelope. The non-reflective ones just have optimized filaments, but for a given input wattage you'll get X amount of light and Y amount of heat.

krabkakes95 said:

I saw a website online

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That's pretty common on the internet. What's unusual is seeing a website offline.

that claimed HIRs emit less heat than the halogen equivalent.

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That's wrong (another common thing on the internet). Watts in = watts out. HIR1 (9011) and HIR2 (9012) bulbs of any legitimate design, with or without an IR-reflective coating, have higher efficacy (lumens per watt) than their direct regular equivalents HB3 (9005) and HB4 (9006), but the vast majority of the output of any glowing-filament bulb is still heat, and a difference in operating temperature (if any) is going to be so tiny as to be very difficult to measure.