You decide not to do anything too risky until you test a few more things the flashlight can do. You've seen that it could change small things like breasts and hands, but not an entire person. You also want to see how well it works through clothes.
You decide to use the flashlight on the first person who walks by, which just happens to be an extremely buff guy probably around the age of 25. You turn the light to it's brightest pink setting and point it at the guy. The man's muscles instantly shrink down, his pecks turn into DD cups in a matter of seconds, and instead of a giant bag of meat, he suddenly looks like the most gorgeous woman you've ever seen.
Surprisingly, nobody seemed to have noticed the bright flash of pink, or the man's extreme changes. You decide to test something on yourself: it says the user's memory isn't affected by the light, but what if it affects the user if they use it on themself? You take out a piece of paper and write "you are a guy" on it, you then take the flashlight and shine it on yourself until you are 100% feminine. You think you still have your old memories of you being a guy, so you decide it's safe; however when you look down at the paper it says "you are a girl" instead, which starts to bother you, so you change yourself back, which therefor changes the paper back.
For one last test, you wait for a couple to walk by and you shine the light on the guy. After the change occurs, the two are no longer holding hands, and you hear them talking about clothes and other things like that. It's obvious the two of them are no longer into each other, and are likely friends instead. You complete your notes with this information and begin to look over your information:
1. The light works on animate and inanimate things
2. The light works exceedingly well through clothes, and likely things like glass.
3. The light will not change the user's memories, but notes about one's gender will change with them.
4. The light has the power to destroy relationships.
you put the piece of paper in your pocket and think on what to do next.