Stop using your phone as a camera. The camera modules in smartphones are usually around $8. You can't expect an $8 camera to do a decent job.
In your case, the problem is in part that you're using a phone instead of using a proper digital camera. If this is a one-time photo shoot for some items to be posted to the web, then your phone is an obvious choice as opposed to spending $500 on a decent DSLR or mirrorless camera set up.
What's really going on is user error, or at least that's what it appears to be happening. Set up your lights at 45 degree angles to the subject. If the image on your phone appears to be too bright, then lower the exposure. Not sure how you do that on an your specific phone, but there's usually an icon or simply swiping down will do the trick.
If after you figure out how to lower the exposure you're still getting an image that's too bright, then simply move the lights further away from the subject. Moving the light away will lower the brightness of the scene, thus producing a darker image.
Basically, you're using a phone to take photos of subjects that the phone was simply not designed for, nor does it offer the basic lens and exposure options that you need to produce an acceptable photo due to the conditions and parameters of the scene.