Has anyone considered that the choice of UV bulb might also have a bearing on the curing time/effectiveness of the lamp? After all, even the most powerful lamp will still only cure as well as the bulb that is in it, right? Put an ordinary UV bulb into a curing lamp, and it will light up, but it won't cure anything. The suppliers recommend replacing bulbs every so many months, even if they aren't burned out, because they lose their curing power.

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