The light does not blink or come on with instlalation of battery. I have a battery tester and it is 100% strong. Is it i a dud or is there a trick?
1509524
I'd say it is a bad unit. I bought 3 and 1 appears ro be bad as well. I will be sending it back myself.
1509525
I agree with Jose. We also bought 3 and 1 was bad. Honeywell replaced it with one that works. Looks like the magic number is a 66% rate of good sensors. Hopefully Honeywell will improve their quality control. The units that function properly work very well.
1509526
After syncing with the main unit I had no issues and it's still working perfectly. If you've synced properly you may have a lemon.
1509527
The last time I changed a battery, I had a similar response. But, given time it recovered and is now working properly. Maybe it's a capacitance issue.
1664175
Susanna, all the answers below are addressing you testing the light during the daytime. If so, they are correct. One item that you may want to consider is how you have the light powered. This is a powerful light, and at night time I can stand 300' away from my house and see it clearly. So, if possible make sure you are using the correct power source that came with the light, and also, if you have it in a power strip it does not always receive the power it needs. Try plugging it in to a single outlet, and you will probably solve the problemm. Good luck. Dan
716361
Actually, mine has NEVER come on!. I don't know if I've done something wrong, or if it is defective. I should have, and would recommend, spending a couple dollara more and getting a good light, instead of taking a chance on this one.
1762850
My battery tester works fine. Making sure the battery is laying on the flat metal area than pushing it against the metal wire-like strip should give you a read out. If no action, request a replacement.
140780
I had the same problem with my initial order of this item; therefore I requested an exchanged and once again the item was not functioning. I suppose to light up once the batteries are installed. Unfortunately, I finally requested a full refund. I think it's probably due to their shipping method (soft packaging via USPS) which can damage the interior components.
1618531
I just received mine in the mail, and is starting to think it may be a fake. Did your light always blink?? Mine is, and it looks like it's not supposed to be doing that! Help!! Did I get a fake? I can see where the plastic was molded, also. Is this a sign of a fake??
764362
I recently purchased this product but have not installed it yet . Right out of the box all the parts fit together and the light worked right off the bat ,before any charging . My pull switch works but is a little hard to pull it on or off . Maybe you need to but more pull into it ? The last resort is to return it .Good Luck
1034222
I have purchased two of these lights. Had problems with the first only working once in a while. The company sent me a new sensor for it, but it didn't make any difference. Was just going to take it down, but our local REC said they would look at it for me. They said everything checked out good, so they put one of their sensors in it, (greased the prongs of the sensor good), and it has not failed since. When I bought the second one, I also bought a sensor from them and installed it befor I put the light up. Hope this will help you. Don
1268146
Makes sure batteries are in correctly, leave to charge overnight, if it's still not working, contact seller with the problem. If they don't satisfy the issue then contact Amazon and they will take care of a refund and return for you. Hope it's only a battery/charge issue. It's a great little light!
1220690
We installed the new battery and when we started pedaling the display came on. If you've tried pedaling and it didn't light up, I'd start by checking to see that the voltage at the battery is good and if it is, there may be another problem.
396662
I have not had my light that long...prehaps the rechargeable battery is the problem. Have you contacted the makers of the light?? I don't remember if it had a certain life of the battery when I bought mine.
1657884
On my tester, it will either light up or not, might be a loose connector be sure and check the leads into the the plastic 20pin connector, that they are all seated and the female connectors are not spread out..
1390613
Not to start off sounding like a smart a** but make sure it's plugged in to a working outlet. Second push the button on top once. If you can't tell if it's working turn the lights off. You should see a faint bluish glow in the dark.
806740
That's what I wondered too, if it needed to "warm up" first, or be in an extra-dark room. You may have a faulty one too like me. I had to tap on it near the bottom & turn it upside down & hold it it at an angle to get it to light up-not what you should do to make it work! Email Amazon & they'll fwd it to Scientifics & they should email you back w/phone #. I called them today & they said Fedex would pick it up next day & send me another one. So hope next one works! Good luck with yours! :)
1206257
Not wanting to look directly into it, I used a mirror from the side to check . All my lights were on, more than ten. I would call the company to see what they say. I've used mine successfully so far. Good luck.
1232110
Sounds vaguely familiar. If you press the button, does the light turn on at all? Have you tried removing the batteries, waiting a few moments, then reinstalling the batteries? If it's the problem I think it is, I think it's the light's circuitry going into a protection mode. When you charge the light, do you plug the charger cable into power source, then plug the mini-USB plug into the light? Or do you connect the light to the cable first, then connect the cable to a power source? If the former, then I suggest switching to the latter to avoid the problem. I suspect it's an issue of the powered cable touching part of the light it shouldn't if you're not inserting it "cleanly" into the charging port, tripping a protection mode.
1691400
The light is supposed to turn off when the battery is charged. If it only works when plugged in, that defeats the purpose. I'd contact the maker. Sounds like yours is defective. BTW, did some long workshops this summer. did recharge during the lunch breaks. The battery seems to last about 7.5 hours.