The replacenent seems to be brighter than the original. The only thing wrong with the bulb is it is pretty expensive.
I've had the 19.2V C3 worklight about a year, and I now need my 4th bulb. They either burn out very quickly, or the filament is very fragile, and the slightest knock will cause the bulb to burn out. Then, when you need the replacement bulb most, they quite often are not in stock. I usually buy 2 or 3 just in case. Not a robust design.
I not only purchased one bulb but two and the both of them didn't work.
Had to buy 2 bulbs because of local store closing
Great to obtain replacement bulb for my 19.2 volt portable light.
Needed a bulb for a long time, finally went down in price. Not as bright as the new led stuff