Hi,

my recommendation is to use a UV crosslinker, as it comes with an energy intensity sensor. UV bulbs will deteriorate with time, losing intensity, leading to progressively lower doses at the same irradiation durations. A crosslinker allows you to set a certain dose, and the device will automatically turn off the lamps if it has been reached. Also, if you know a nearby lab regularly doing blots, you have a good chance that such a device is already available.

Any lamp that is capable of emitting more of UV light in the wavelength of 240-260 nm would be fine.