what causes the dot to be bright or light up in the dark?
218384
Tritium is a naturally occurring radioactive element that glows in the dark. For daytime defensive shooting, the white circle around the Tritium is what you should be looking at, you no longer have to use rear sight, just point the white circle at target for quick acquisition.
218385
it has a tritium insert in the front sight which glows in the dark, much like he luminous dial on your watch , only brighter
218386
Actually, it is always on with tritium night sights. It just appears to grow brighter the darker it gets. But don't worry, the tritium lasts for years, unlike the red-dot or laser sights that are battery powered - where those you need to switch them off to conserve the battery.
218387
Honestly, I cannot see it in the dark. My ++ review was based on ease of installation. Maybe if it was exposed to light it would glow. Unfortunately, how do you expose it to light in the dark? Sorry I could not help. I am staying with the factory sight.
218388
Tritium is a radioactive isotope of hydrogen, and it does not glow in the dark. As it decays slowly into helium, it emits electrons (called beta decay). The inside of the tiny vial in the sight is coated with a phosphor. When the tritium electrons hit the phosphor, the phosphor emits the light; this is called fluorescence. Some extra info: There are many phosphors, but none of them contain phosphorus. They contain various elements such as zinc, copper, sulfur, etc. Different combinations emit different colored light. The tritium has a half-life of about 13 years. Therefore, after 13 years, only half of the tritium in the gun sight will remain. This does not necessarily mean that the sight will be only appear half as bright to your eyes in total darkness; it is possible that it will seem nearly as bright as when you bought it. I can better answer this in 13 years. Sorry for the long answer.
218389
The Tritium. It is a radioactive isotope of hydrogen. Its radioactive particles are unable to penetrate the skin. For it to hurt you, you would have to grind it up and snort it. Hope the helps.
218390
a chemical compound on the sight. Tritium. ( not sure of spelling). It glows for about 10-12 years
1325603
focus on the target, not the dot. it should be clear then. if not, send it back for a replacement.
1538069
If the sun comes up directly in to the camera, it will show up as a black dot until it is out of view. The lens automatically adjusts for light as much as it can.
918817
If yours isn't doing like this video at the beginning then return it. It should look like lighting in the sky quick flashes etc...Hope it helps...really is a great light! http://youtu.be/CZXFgRxgj34
1027534
The dark image usually cause by power data cable issue. The power data cable does not support enough voltage 5V to light up screen.
1583447
The intensity of the soft/dim light before motion is sensed is like moonlight on a cloudy night, or like a nightlight in your bathroom. It is enough so you know it is there, but it won't help you see much. Luckily though, the fully activated mode is super bright.
959126
I believe what you are referring to is local dimming. Parts on the screen that have content are lit up and parts without content are dimmed down or even turned off. I've noticed that when turning on the TV the bottom left corner is brighter than others which may appear like bleeding but I'm guessing it's related to local dimming. I wouldn't worry about it. I watched dark movie scenes and I don't notice it, the picture is perfect.
1485158
It's bright enough to see easily during the day, so I expect it would very bright at night. They've removed the flashing feature due to customer feedback so it remains on steadily when your device is on the pad. "Customizing" it with black tape should solve any night time issues.
83945
I have not seen this black dot. My display is clear all the time. Does this happen when you are at the end of screen selection? if you are seeing this while at the end of the left or right of the main screen. This is normal , to let you know there in no more selection. Hope this helps
2283933
Yes, their is actually a dot present in the center of the crosshairs when the red dot is not emitting light. In other words, you do not need to have to reticule lit in order to acquire a target.
2187056
via motion and it has to be dark. If you move but it's bright, then it wouldn't turn on.
1999392
It will light up when it senses motion, not simply because it is dark outside. If they are not working, I would first check the batteries.
2199010
Check the electronic eye on top of the light. I had a similar problem and it was the electronic eye. I bought a replacement at Home Depot for a little under $10 and that took care of it. Hope you can figure it out!
1874163
The nightlight is not the little red dot. You need to slide the button down one notch for the nightlight feature.
1098704
Try adjusting the intensity to a lower setting. If you have any type of stigmatism all red dots will kinda appear that way as well. I found with mine that lowering the brightness helps if I'm not wearing my glasses.
1978571
The light is a slightly different color but appears to be as bright or brighter. I replaced fluorescent with the LEDs.
1425611
I don't know but mine do the same thing and the low beams are so dim I can barley see the road at night.