I am not sure how the cold resistance of a Halogen bulb compares with that of a GLS bulb

As long as the cold resistance of the halogen lamp is not too low for the power supply to start
the Halogen lamp should be OK
cold the 240V 100W GLS bulb about 43 ohms


to setup the Forgstone TV Kit
the GLS bulb was used as a low cost alternative to a
600 ohm 100w resistor

since then I have use the bulbs to test other things like the speed controls used in a Clarke CL300M lathe

https://www.model-engineer.co.uk/for...s.asp?th=38809

John