Bromine Homolysis Using Handheld UV Lamp

I'm trying to investigate the homolysis of bromine for an IB Chemistry (high school) Internal Assessment. To do so, I need a UV lamp capable of splitting diatomic bromine into bromine radicals. Would a handheld UV flashlight off of Amazon (395 nm) or a 4W UV tube (265 nm) work to do this?


I'm trying to react bromine radicals with methane to produce other gases. I need to produce enough of these gases to create a noticeable change in mass of my bromine sample (0.05 g or more).


