DIY light source for 10X10" enlarger.

To date I've considered enlarger light sources to be engineering well
beyond 
my feeble capability, but I have used and examined only condenser
enlargers 
such as the Leitz IIa and Omega condenser enlarger, but my task now is to 
make a diffusion thpe for the 10x10 enlarger.

I want something with No built-in filtration. No fancy color mixing for VC

papers. No electronics. No side-lit mixing chambers. Just a straight
forward 
light source and a diffusing layer. I question cold light, mercury vapor, 
tubes, whatever they are because I just don't plain understand 'em.

I can blunder head-first into this project, but this group has some smart 
people with impressive experience, so I'll put my blunder idea forward.

First, I am limited to ~110V AC power although converting to DC is an 
option. How about a simple array of 'white' LEDs at the top, pointing down

over the typical sheet of plastic translucent material found in home
supply 
places?  Or should it be fine ground glass? I am not concerned about the 
variability of LEDs over time unless they change during the time it takes
to 
get an 8X10 negative-to-print just right - maybe a day or two. The power
for 
the light will be run through a robust power-conditioner once set aside
for 
a big minicomputer. Batteries not included.

So far so good? Corrections would be most welcome. OR just let me blunder 
and if it goes badly I'll post pictures of the catastrophe.