SS4Luck
Established Member
I use fixtures that do no have built in reflectors. I use aluminum foil to help direct the light downward. in fact I use foil on every singly light fixture I have, unless it already has an aluminum reflector, such as the HD/Lowe's clip light domes.
This is an old photo of a fixture used over a free range that I no longer have setup, but gives you an idea of how I use the foil...
Take a look to see how well foil helps UVB output...
https://www.chameleonforums.com/some-readings-22893/
was that over that melleri that you had in your front room?