When we go into structures for building clearing, like houses, we use our weapon mounted tac lights and also turn on light switches as we go. Lighting is your friend and so is 3 man bump fluid paced room clearing which is basically an assault that does not give the bad guy much chance!
Use that light with off hand switch activation.
I do understand many military spec ops units do not like tritium sights because they are a position give away or they black them out. Many do not use pistol mounted lights because they use night vision. This is how to roll in combat, but civilians and LEO's generally do not use night vision. But night vision is an awesome option if you can afford it!
May God make smooth the path you follow!