[bionicmerlin]

Interesting about the bulbs, I didn’t know Belling had a custom lamp. In the old days well about 40 years ago when I was an apprentice I used to often get the job of replacing the flexes on these . I seen assorts of odd lamps in them . I think we used to put red pigmy lamps in as a replacement. Not knowing any better. We never had any trouble with the heaters it was just the flex Andy