Fitting the bulb into my old slide projector was relatively easy since this replacement bulb was a lot more robust than the original.
The bulb worked perfectly. I bought a spare just in case I broke the first one, but all was ok. The brightness of the bulb is the same as the original, so I was pleased with the purchase.
I was a bit surprised at the cost of each bulb when I was ordering, but across the board it was a comparable price.