RAYHOO 10pcs G4 LED Bulbs JC Bi-Pin Base Light Lamps 3 Watt AC/DC 12V 20W-30W T3 Halogen Track Bulb Replacement Landscape Bulbs(White 6000K)

They fit my fixture and run bright without the extreme heat of low voltage bulbs

Je suis décue de cet achat car les ampoules lorsqu'elles sont allumées plusieurs heures (plus de 4 hrs) se mettent a clignoter, puis s'éteignent complètement. Je m'en suis apercue après quelques semaines d'utilisation. Je dois fermer et réouvrir l'interrupteur.. Je crois que je vais remettre des halogènes.

I have a variable power supply and tested them from 9 to 20 volts. I also tested them with ac and dc voltages and they worked as expected. I noticed some other reviewers complained that these bulbs get quite hot. And indeed they do if you operate them above 10 volts they get quite warm even at 12 volts. At 20 volts they start out quite bright but quickly dim I didn't run these to destruction but it looks like to me that they will have a much reduced life time at any voltage about 12 volts. This is as described by the seller so you do need to make sure you don't exceed 12 volts or you will definitely experience shorter life time. For me I determined that at 9.5 to 10 volts they are bright enough for my needs and that is the voltage I will be running them at. As an added bonus at this voltage they are just barely warm to the touch after running for many hours. Hopefully this also means a longer lifetime but only time will tell for that.

I ordered these for a floor lamp I brought on the marketplace but it was the wrong size.

These bulbs are great. I’ve had them in my landscape lighting for 5 years and they’ve been flawless. I can’t even recall replacing one. I didn’t know what to expect with these in outdoor fixtures exposed to wide temperature swings/heat, and the only precaution I took was some dielectric grease to ensure moisture didn’t corrode the sockets they were plugged into (a problem I experienced with the halogens). Pleasantly surprised by the longevity of these, considering they have run every single night from before sunset to after dawn, every day, in all weather conditions, since installed. They’re sort fit just like the originals, the only difference is the flat base, which was better in my case.The outer covering that the LED array is embedded in is a sort of clear rubber. The circuit inside the bulb also corrects polarity, which is a great feature as you can plug them in either way, just like the incandescent bulbs.I came back to review them not because they have been a problem, but because they haven’t been and I retrofit one of our inflatables with one of these because they happened to be the right voltage and just work.Many “brands” come and go on Amazon, but this one hasn’t. Still the same, still available.Would gladly buy again when I finally run out of them. Probably not any time soon.