Cheap E27 light bulbs with high UV content for enlarging?

[ForenSeil]

Hi!
I want to do some enlargements from normal negatives to Cyanotypie-paper soon.
From what I've heard it's tricky with normal enlargers as the active ingriedient does only response to UV-light.
That means ultra long exposure times with normal light bulbs.
Any idea if there might be an cheap alternative to the normal light bulbs with higher UV content?

[kds315*]

Doesn't work. People doing that make a internegative in intended size and then make a 1:1 cyanoprint
using a UV box with UV fluorescent tubes inside (or use sun - cheapest). Still takes some 10-30 minutes.