4 Pack A19 LED Black Light Bulbs,9W (100W Equivalent) E26 Base Dimmable Black Lights, UVA Level 385-400NM, Halloween Light Bulbs，Glow in The Dark，Fluorescent Poster, Body Paint,Neon Glow Party

These do exactly what they’re supposed to and are less expensive than other options that I looked at. They gave a great black light glow for my party and fit seamlessly into my lamps and chandelier as they are the standard household bulb size.

Really great bulbs, works well as stated and has excellent blacklight effects on white or light materials. I noticed that if you have it on in a room during the day where outside light or other regular lights are on the blacklight effect is not as strong, best in a completely dark room with no other light source. Also the bulbs don't get very hot with which I was pleasantly surprised.

I gift this bulb as a night light for my nephew. It provides enough light to keep away the shadows. He loves the glow that it cause on his shirts, nails, teeth, and various lints. The parents are okay with it since it's not ambient, they can actually fall asleep with it on. Win win....

Overall these are good, with a couple points to note:The overall heat output is pretty low. I let one of these run all night in a small lamp, and the top of the bulb stays pretty cool but the base (the area from the black section to the bottom metal part) gets fairly warm to the touch, but not excessively so.These will make some neon items glow (depends on the color, and how close the bulb is to the items) if the bulb is pointing straight up in a typical lamp. Unless you are aiming the top of the bulb directly at the neon items, you won't see the full effect. If you are looking for a "true" UV Black Light that only lights the neon items and not the rest of the room, get something else.However, if you want a really bright BLUE ambient light, these are the definitely ones to get. One bulb can easily light up an averaged sized room fairly well, especially if placed in a room corner with bare walls. In these cases, you might want to put it in a lamp with a dark shade. If used outside, the effect might not be as dramatic, but I don't have the means to try it.Regardless, for my purposes I am using these indoors only and I've taken off one star because of the excessive brightness.

Very nice ❤️

Not as “black light “ as I’d like but it will work!

Happy with purchase. Purchased for my halloween decorations. The black lights work well. Arrived early and packaged extremely well.Thank you

Produced the dark purple effect I was looking for on Halloween.