Hey folks as someone who has purchased a few UV lamps for closets and small nooks, here’s my perspective. Second, safety is paramount with these, and you should not be in the same room when using one. Be sure to air out the room with windows open due to ozone that many of these produce when running. For closet sanitizers, I would recommend one that is in the 6W-25W range with timers (the 15/30/60 min options are perfect). Also, ozone-free lamps are a safer option, but make sure you really need the extra disinfecting power.
For price, a decent quality closet UV lamp will run in the $25-$80 range on amazon. Higher end models (remote control, with larger “coverage” like 38W) can run up to $130. I have found some good options on Alibaba as well, as they often have good bulk pricing, and I’ve found the quality control is better since you can choose suppliers. Facebook marketplace sometimes has used ones; be wary about how long the bulbs have been used. What have people had experience with these and what brands are you hiding?