Have a 50watt halogen lamp with a center tap transformer with a bright/ dim switch 12vac/6vac. Can this be used with a resistor and what value?
1551597
hi you could certainly use the switch and put a resistor in its path on the 6 volt side , you could put a variable resistor in its place and once it is in the 6 v position you coulfd then vary the resistance till it suits you. if the other position is exactly what you need you would have ot do the math and use the forumla v=ir or proprly rearranged r=v/i i don't know what "i" is so i can't do it for you also the following formula p=ir(2 squared) power (p) equals 50 watts you then would need to measure r (resistance) don't kn ow if this helps ( it is the engineer in me )
1551598
hiyou could certainly use the switch and put a resistor in its path on the 6 volt side , you could put a variable resistor in its place and once it is in the 6 v position you coulfd then vary the resistance till it suits you. if the other position is exactly what you need you would have ot do the math and use the forumla v=ir or proprly rearranged r=v/i i don't know what "i" is so i can't do it for you also the following formula p=ir(2 squared) power (p) equals 50 watts you then would need to measure r (resistance) don't kn ow if this helps ( it is the engineer in me ) hiyou could certainly use the switch and put a resistor in its path on the 6 volt side , you could put a variable resistor in its place and once it is in the 6 v position you coulfd then vary the resistance till it suits you. if the other position is exactly what you need you would have ot do the math and use the forumla v=ir or proprly rearranged r=v/i i don't know what "i" is so i can't do it for you also the following formula p=ir(2 squared) power (p) equals 50 watts you then would need to measure r (resistance) don't kn ow if this helps ( it is the engineer in me )
1551599
If you have a transformer on it now, why do you want another? If its currently 12vac, why are you want to install an inline resistor? The value would depend on what your attempting to accomplish.
1198520
I have the bulb and it is stamped 130V. Wikipedia says "In the United States[3] and Canada,[4] national standards specify that the nominal voltage at the source should be 120 V and allow a range of 114 to 126 V (RMS) (−5% to +5%)." (http://en.wikipedia.org/wiki/Mains_electricity). However, I have a BSEE, and I'm confident that in an ordinary household lighting application, the bulb will work fine on a nominal 120V circuit, as it does in my house (where it lights up the inside of a dog made from a gourd :-).
388211
You should be able to change the light to whatever 12v light fits. A 50-watt MR16 halogen bi-pin bulb comes with it.
1878608
Look up "low voltage transformers" on Amazon. Almost any one will work. I used the paradise gl22720 because I wanted a light sensor.
2190875
I believe so, but can't answer for certain. In my case, I just replaced the old fixtures, clamping in to the existing low-wattage line, and had no reason to check out the transformer. My previous experiene with low-watt lights required a transformer. Wish I could be more difinitive for you.
744399
Yes, it will work fine, except the bulb will be less bright than when used with 12 volts.
479144
You will need a transformer to transform 120V to 12V since this dimmer switch requires a 12V input.
1694887
Yes this unit can handle any combination of 12v halogen light bulbs as long as you do not exceed 75w total wattage. However we would recommend not to exceed 68w as all lighting items have a +/- 10% variance, meaning each unit can sometimes only handle 68w where others may handle up to 82w. So to be safe use the lower wattage rating of 68w max. This will help the life of the item.
388209
You're welcome. I know this because the older models used 12v T4 50w bi-pin halogens, but I removed the reflector and replaced it with an MR16, and they work fine. I was thinking about LED but bought several MR 16 bulbs on sale.
1896693
Are you using this for LED tape light? The dimmer is rated for 12 volts. If you hook it up to a power source with a voltage greater than 12 volts the switch may work for awhile, but will eventually get fried.
1694889
Hello yes transformer is rated for up to 75 watt six fixture by 11 watt will be 66 watt.Thanks
1203583
As long as the light circuit (picture light) is receiving the voltage/current in the range it was specified/designed to work at. You need to look at the output specifications of the European transformer and compare it to the output specs of this transformer. I'm guessing they are the same since these LED circuits are usually sourced from the same manufacturers with similar power requirements. But you have to check to make sure.
789650
The wire is probably OK as long as it is stranded copper like lamp cord wire as these lamps use snap connectors. Your transformer will dictate how many lights you can put on the circuit. If you have a 300 watt 12 volt transformer you could put 30 10 watt lamps on the circuit as long as your run is not too long. Bulb changes should not be required.
476848
First you have to ask the manufacturer if those are dimmable lights. If so you will have no problem the transformer.
972540
If using for a turn signal lamp then yes you'll need a resistor. I used them for reverse lights, no need for resistor on that application.
590513
NO, these LED lights do not need a resistor at 12V. Smart cars (??) with lamp-out detector will need a shunt resistor across the light socket to fool the system into believing it has an incandescent bulb installed. The LED doesn't need the resistor, the stupid car does.
572822
I'm using it with a 200+ watt halogen bulb, it dims to a low voltage so I'd assume it would.To my knowledge voltage is the requirement, not wattage, but you should check with Insteon. You can contact them through the Smarthome site.Good luck.