UV Ultra Violet Black Light Bulb 20W B22

Works well, would have liked one with more power if available.

QTX lamps are very good, this CFL style wood's glass lamp provides true 365nm long wave UV-A with very little visible light, ideal for a long wave fluorescent mineral display. I have two 20W and one 15W lamps in my fairly compact display, this provides enough UV for viewing in normal room lighting, however it is better in low ambient lighting. The lamp take about five minutes to reach full output which is to be expected. The tubes don't get very warm, however the ballast at the base does get quite hot, although not enough to burn when touched. Just make sure there's plenty ventilation and it won't overheat, they are designed to be used in enclosures. 15W traditional 365nm tubes can provide a more even light, but for a compact display such as mine the CFL style is excellent, and you don't need additional ballast or starters. Overall I would recommend these for a fluorescent mineral display.

This bulb seems to give off quite a lot of UV light with very little visible light. The bulb does glow blue, but a lot less visible light than LED UV torches I have used. You would only need one of these in a room to make any fluorescent things glow. I bought it for some photography of glowing objects, and overall very happy with it. Looking forward to putting it in the front room with some glow in the dark pumpkins for Halloween!

This UV Ultra Violet Black Light Bulb is a great addition to any setup that needs a fun or artistic vibe. At 15W, it provides a strong ultraviolet glow that works beautifully to highlight fluorescent colors, glow-in-the-dark items, or even create a spooky ambiance. The B22 fitting makes it easy to install in most standard light fixtures, which is super convenient. I’ve used this bulb for a themed party, and it instantly transformed the room, making neon decorations and white clothing pop. It’s also been handy for creative projects and checking for hidden marks on documents or currency. The build quality feels solid, and the bulb has worked flawlessly without flickering or overheating. Just be mindful that this is more for ambiance and UV effects—it won’t provide bright illumination for everyday use. If you’re planning a party, want to enhance artwork, or just love the unique glow of UV light, this bulb is an excellent choice.

Good value Dubble check ur connections heD before perches as I got the registration when I needed a minni neck width

Bought this as a replacement for a previous blacklight bulb. Good bulb and works fine

One thing to remember is that this is a 'black light blue' bulb, which has almost no visible light and therefore only illuminates objects that respond to black light. It was installed in a room approximately 4m x 4m and easily covered the entire area, illuminating a number of interesting objects, including displaying a previously hidden wallpaper texture under several coats of paint! Fascinating! As with CFL lamps, they can take a little while to warm up, although I believes the additional heat encourages more UVA production. A true black light can be a lot more effective than a UV LED bulb, which produces less black light and more visible light, and I suspect that reviewers who have complained this lamp is not bright enough simply need more fluorescing material. The whole idea of the bulb is that you're not supposed to see the light - only what it fluoresces. Believe me, it works exactly as I expected it would :-)

Received today doesn't turn on