I understand that black light shouldn't be bright, but I at least expect it to give off enough light to illuminate my 20x20 cm living room with 6 black lights. My ceilings are also only 8 feet. It was literally pitch black for my Halloween party. I mean all the other neon decorations I had didn't even glow because those black lights might have had 3 Fr coverage (too much here). I bought a total of 3 packs of 6 bulbs ie 18 to light up the entryway (1 bulb), living room (6 bulbs), kitchen (6โฆ