Are the bulbs tolerant of 13. battery voltage? I've tested and they don't get bright and hot like others, but anyone understand the electronics?
1513307
Hi Dustin, 13.8-14 volts is ok, but please make sure the electric current is more than 400 mA. if current is less than 400 mA, the brightness will be darker.
1513308
Do you mean 13# coin battery? As we know, the 13# battery is only 1.5.-3v, but the bulbs need to be supplied by 12v.
1471097
I have two sets of them, I add Led bulbs to it while it is only 12v the old bulbs put out lots of heat led put out none that can be felt. Heat is wasted energy plus led are cheep now you can get LED MR16 Spotlight 12V 4W (340 Lumen - 50 Watt Equivalent) Sold by TrustEHarbor $2.35 + Free Shipping they do come from China so it dose take time so far no problem. I would have gone with the 120v led if I did not have two sets now
1653455
I am using the same bulb in my outdoor lights and have no issues. That being said i don't remember the box markings but worst case scenario is it just won't work if it actually needs 85 - 265v and you put it in a 12v system.
707996
These bulbs do work with 12v. The equivalent output is approx. 10 watts. The light is whiter than the incandescent bulbs but does not go blue. They are a good option for reducing power usage but not for increasing light output. I have only been using them for about two weeks so I cannot speak to longevity.
1153176
Not entirely sure. It should work, I think, but probably with slightly dimmer output if the voltage drops too far. My main concern would be that these bulbs are not designed for outdoor lighting situations - these may not be particularly rugged enough. In general, the longevity of these bulbs are somewhat low - they tend to die within a few months or so. Since I have not yet reached that stage with my purchase so far, I can say that they are working "normally" for now. :)
697548
You would need to step down the voltage to 12v for the lights to work without burning out. I had a problem with several of the lights I purchased in that the 12v in my RV burned and shorted the wires and the panels got so hot that the adhesive pads melted.
2105778
I live on a sailboat with a 12v system and the construction of these bulbs is more solid compared to household 12v bulbs. These are a very white light that is almost blue so be aware that it's a lot different than the "yellow" look of typical bulbs. I like it myself, but you will have to decide. These are good bulbs and have so far shown high reliability. Good luck.
1129625
Not very well. These are designed to output a constant light level from about 10 volts to 30 volts DC. From 10 volts to 7 volts, this bulb will go from full brightness to so dim there is just a tiny spec of light on the face of the LED's. Anything below 7 volts, they are totally dark.
412008
I think you have some other problem, my bulbs are still original. I would recomend to check the Watts and Voltage
2045630
Can't answer that....my bulbs failed in just a few weeks, but I just took the hit and bought some incandescent bulbs to replace them. They shouldn't sell such unreliable bulbs, for sure. Sorry.
1026438
I have been using mine in my low voltage outdoor lighting and only one has failed in 6 months. the others shine bright. I think my original halogen bulbs would fail in about 3 months. I live in Arizona though, we don't get much rain.
1038417
Well, Chad. The ones i bought work Perfect, No Issues. Sounds like your problem could be a Ground Issue? I guess i would hook them up, one at a time, to a good 12volt battery. makeing sure if the problem follows the same light. then...take that light apart and look for any possible Faults?
241171
Not quite sure about that?! I run these on my scx10 jeep with a castle creations BEC and have the voltage set at 6.3v and haven't had an issue. .and they are quite bright...i guess you could if you wanted to tear them apart and add some 300ohm resistors in line with the leds then run the 9 battery
593574
If the voltage and amperage is the same as regular bulbs they should work fine. They may come on a little slower, but should work fine. check with bulb dealer they should know for sure
1265626
I believe these bulbs were 7 volts AC. I am not sure if they are ok for outdoor use. I used them indoors in my windows with the candelabra lights. Out of 20 I bought maybe two actually worked correctly. I threw them all in the garbage.
185470
Hello, there's customer not measuring voltage use high voltage and damaged the bulbs ,DC12V Bulbs Burned when last long time input high voltage , we received some Burned bulbs so have to add a notice to recommend, some new RV over 13.5v or 14V ,can select our GRV brand AC or DC 12~24V LED bulbs if not sure the input voltage,thanks!
1581464
I am useing the flat lightbulb shaped LED bulbs in mine and have had no issues. They are cooler and brighter and it is noticable. The other bulbs were very hot, expensive and delicate.