ONTWIE Glow in The Dark Arrow Sticker, 1.57 x 0.94 Inch Glow Stickers

These dots glow brightly for me. I think that those who give this product a poor review do not understand the nature of phosphorescence. When exposed to light of a shorter wavelength, a phosphorescent substance will glow, absorbing the light and remitting it slowly at a longer wavelength. The dots will not glow if they are not first exposed to light, any more than a car will run without gasoline. I use mine to show me the way to the bathroom at night. To be sure they will glow brightly, I charge them each evening by placing a small UV flashlight against each of the dots for a few seconds. For a few hours, the 4 dots will light up the small room enough to cast a faint shadow on the walls. One charge will keep them glowing for days, but I like to amuse myself by seeing how bright I can get them. There is not enough light coming through the small window to keep them well-charged without a little extra help. The UV flashlight was purchased from Amazon and was advertised to show pet urine stains.

Doesn’t glow bright enough for me, unless I’m in a super duper dark place. I can sometimes see my keys inside my purse but not the pieces that I put on the remote control or my cell phone.

I have placed these all over my house, and my wife is going insane. A+

I give them to my students, who enjoy the novelty. I'm able to charge them at the light or the window and stuff them into my backpack to show students the glow. Having said that, these stickers do not glow long enough to be helpful in my house at night. I had placed stickers on a couple of light switches and found that the glow is either absent or not very strong when needed most. Whether that is the norm or a weak batch, I do not know. In spite of that, they were perfectly good for my original purpose.

They don't glow at all! Exposed to sunlight all day and do not glow even a little.

I have purchased these dots 3 times. I used them around the house to create designs on my bedroom door and hallway. They mark the way down the hall and are really great. The dots really absorb light and glow all night long. It is great to open your eyes and see the glowing dot designs. I am pleasantly surprised by how bright the dots glow. The dots only need a minute of light to glow all night long. I would highly recommend these dots for emergency usage to light the way or for glowing designs.

These were ordered to make it easier to find my remote(s) for tv, etc. they work! Would recommend them.

I left them under a bright light for at least 1/2 hour and they went very dim after being away from it for 20 minutes top. I’ll keep them for garage sale pricing tags, you get what you pay for

easy to use and i have them stuck to the floor in case of emergency lights failure. very bright and strong adhesion with no lifting

Je les ai achetés pour indiquer les interrupteurs dans les couloirs. Elles deviennent luminescentes après exposition à la lumière et le restent pour quelques heures chaque jour. C’est faible, mais comme il y en a beaucoup, j’ai collé une flèche au mur quelques cm en dessus de chaque marche de l’escalier en colimaçon. Cela suffit pour emprunter l’escalier dans le pénombre en « voyant » les marches. La durée de l’effet dépend de l’exposition dans la journée. Cela n’apportera rien dans une cave. Elles tiennent sur un mur peint depuis quelques mois sans se décoller. Contente de cet achat.

They are so bright under black lights

Ok

Leuchten ausreichend hell und lange, perfekt!