I bought around 24 new 80W MBFU 3 pin lamps a while ago for £2 each and I have a few used ones, but how many should we have before we can say we have stocked up?I would say aim for at least 50 MBF lamps would be reasonable so that you have enough spare to last you a couple of decades. I have about 7 MBF lamps that but sadly two don't work. So I'll be aiming to get a fair amount too. Just had a thought too, MBF ballasts and capacitors could also be stocked up too but I would say aim for about 10 - 15 of them.
I may also see if I can pop a word in where it counts to see if I can buy any boxes of 'unrequired' MBF lamps once all the mercury lanterns have come down.If you get the green light for a box or two (or even three) Chris, then I'll happily have a box too.