using these bulbs in low volt landscape lighting. My Pwr Xformer has a14V tap to compensate for long cable voltage drop. How is the Bulb affected?
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. :)
1153177
I have used these bulbs as replacements for burned out bulbs in my motorhome. They work perfectly. Apologies, I am unable to help you with your problem. Good luck on finding an answer.
1153178
I have then connected to on dusk off dawn 12v transformer with only six landscape lights. Went through 10 of these bulbs on just the same two stations. The other four with different bulbs outlasted all of these. When my housings go, I'm switching to LEDs as these halogen bulbs are expensive for the brand names and the no names are so short lived.
367759
I am replacing the current bulb which draws approximately .9 amps 12V DC. I would guess that the draw would be 0.2 amps or less. By the way these bulbs are bright and seem to be high quality. My application is for the low voltage landscape lights.
510091
You have to make sure you use the right voltage. I believe your "MR16-130-50w" is a 130V (Volt) bulb. This Torchstar LED is a 12V (Volt) bulb and that will not work in a 130V application. The transformer is the part that takes regular household voltage 120V down to 12V.
1114179
The deciding factor to the answer is the voltage of the old license g by, as well as type of current. These bulbs are 12 volt ( more or less) and DC current. I would verify both before I used it....rsbhunter
1628512
I have been using this bulb outside by my rear slider and have noticed NO difference in the output. For safety and reliability make sure the bulb is not exposed directly to water.
900057
Sorry, the box does no say. All it has is 130V. The seem to be just as bright as the old 120 watt bulbs. If that's any help.
1488370
Given that these are 120v, their life expectancy is shorter than the 130v equivalent. However, these are noticeably brighter than the 130v, which was the main reason I purchased these bulbs.
190979
This is suspect. I would check your volt meter....put a load on the relay and measure it again...its a standard relay and there should be no voltage present. I have encountered mystery power from leads before...but I think its just erronious readings from the meter....are you using a good quality meter? Fluke? Klein? Can you hook a miniature light bulb or LED up to the relay leads and see if there is enough power to activate the bulb? Also how much voltage are you using to power the beam sensor? I used a 12 volt dc power supply with great results. One last thing. Connect your switching device and measure the voltage again. My bet is its gone.... This is suspect. I would check your volt meter....put a load on the relay and measure it again...its a standard relay and there should be no voltage present. I have encountered mystery power from leads before...but I think its just erronious readings from the meter....are you using a good quality meter? Fluke? Klein? Can you hook a miniature light bulb or LED up to the relay leads and see if there is enough power to activate the bulb? Also how much voltage are you using to power the beam sensor? I used a 12 volt dc power supply with great results. One last thing. Connect your switching... » Read More This is suspect. I would check your volt meter....put a load on the relay and measure it again...its a standard relay and there should be no voltage present. I have encountered mystery power from leads before...but I think its just erronious readings from the meter....are you using a good quality meter? Fluke? Klein? Can you hook a miniature light bulb or LED up to the relay leads and see if there is enough power to activate the bulb? Also how much voltage are you using to power the beam sensor? I used a 12 volt dc power supply with great results. One last thing. Connect your switching device and measure the voltage again. My bet is its gone.... « Show Less
843055
Yes - I use these bulbs on exterior landscape lighting fixtures that are on a 12 volt a/c (via Malibu low voltage transformer). You can use any normal 120 volt incandescent fixture (which takes normal "old fashioned" bulbs), add to a low voltage line and utilize these low-voltage LED bulbs. They do a great job - so far 7 months running 4 hours per night and no problems. Do not put bulbs in a normal residential 120 volt circuit.
1675756
I used mine on CFL's, and it shuts them completely off. I assume LED's would behave in the same manner. The prior switch I had did allow "bleed" and the CFL's flickered, this switch resolved that issue.
1016202
I have 10 meters strip running at the moment. The problem you run into is that the voltage drop is high. Then start to get dim and the traces start to change color and them get warm. So I have mind powered form both ends. It fixes the problem.
1029267
I was unaware that any of these UV LED modules were rated for more than 4.2 volts, until I read the specs on subject unit. I own several UV LED modules that appear identical in construction; purchased at different times, from different sellers. All are unmarked for voltage range. My unfortunate experiences have been that applying significantly higher than rated voltage will damage or burn out LED modules in short order. My amperage draw (thus, draw wattage draw being computed) tests with several such UV units using a fully charged (4.2 V) 18650 battery show that they typically draw (V x A = W) between 1.72 Watts and 2.98 Watts. Tests with other LED modules that are marked for a voltage range (like 3.0 to 9.0 or 18.0 Volts) always have shown that higher input voltages typically result in an increased Watt draw, using the previously cited formula, and brightness output. Even at a 1.75 Watt draw these modules produce a UV radiation output that is several times greater than that other commonly available types of LED UV pocket flashlights. Yellow UV blocking eye-wear (available on Amazon from about $5.00) should be used with them to minimize the risk of eye burns from reflected radiation!
1896732
Wire nuts. That's it. Be careful when you wire the fixture, these bulbs have a bright side and a dark side, and you just can't flip them over. Make sure that the "hot" pin (110v) is in the correct position for the bright side of the bulb to be facing out from the fixture...
1122225
It will have much lower current draw, be brighter and fit. Bulb life is also in the thousands of hours. One of my best changes.
1319718
I have an electrical engineering degree but have changed career years ago. Unfortunately, technological knowledge has slipped. However, I gave some thought concerning any potential issue if I were to use a low voltage transformer (AC of course) to power these lights. I suppose powering them with with an AC transformer may cause more degradation and shorten the life of the bulbs but other than that, I could not come up with any reason on why they won't work. So, I bought eight to put into my two lamp posts and they seem to work fine with the transformer as a power source. I'm not sure if running the lights with a DC source would produce more lumens but with my transformer, four bulbs in one lamp post still seem dark, definitely not the claimed 75W equivalent (someone already claimed that he measured the power consumed to be less than 5W instead of 9W). However, for my purpose with the lamp posts being decorative, the lumens produced seem adequate as I do have other light sources, if needed. Concerning your question of will they last, I don't expect the degradation to cut the life of the bulb by half but have no data to back up my claim.
931796
I expect yours is defective. Mine runs continuously on 14vdc from a little wall wart powersupply. A 12v lead battery fully charged will be at ~13.7 (14vdc). Note that your bulb is also designed to run on ~12VAC from a little transformer and no rectifier like a doorbell transformer. I suspect the bulb would have the same issue using AC power.
1951502
I have "NO IDEA" I use these for landscape lights in which that doe NOT come into play !!! Sorry