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12v

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  1. andysparkfree

    swapping 12v lamps to l.e.d 12v lamps and lack of load issue

    Hi a friend ordered some 12v led lamps to replace his conventional 12v halogen lamps now obviously the new lamps are not causing enough load for the transformers to kick in can i simply change the transformers to a led driver thats rated at a low wattage? ive only felt with this 15 ish years...
  2. P

    230v to 12v

    Hi,new to the forum, I bought a 12 v refrigerated unit, it was mounted on back of Tesco delivery truck running off a battery. I now have it dismounted and I want to get it connected to the mains (230v).. What kind of transformer do I need and how much would a job like this cost, - transformer...
  3. M

    AC240v/DC36v LED fairy lighting in a 12v DC environment

    I've been gifted the below fairy lights, which rectifies AC240v to a DC36v coaxial power connector. Buy 80 Multi-Function LED - Multicoloured at Argos.co.uk - Your Online Shop for Christmas lights, Christmas trees, lights and decorations, Home and garden. -...
  4. L

    12v ES LED Bulbs and Garden Lights

    I've been searching for a 12V LED lighting setup for my garden and have just come across this forum - and I hope that someone can provide some advice. Specifically, I'm looking for lights to light up a patio area. It's an area of about 6m square and I'm thinking of using 4 wall lights (two each...
  5. L

    L-E 240v L-N 12v N-E 120v

    Hi guys read plenty of things on these forums and now have a problem to post... Fitted a fan heater to a spur in a bathroom today. The spur is on 16A breaker and appears to be a radial. Fitted and switched on at DB and spur but no luck. When i tested the spur I had 240v between line and earth...
  6. H

    Unknown socket type for 12V connector - Camping fridge

    Hello All, i am trying to buy a 12 DC cable for my camping fridge but i cant seem to find one with the style of socket the fridge has. I was hoping someone might recognise it? It is an old fridge so perhaps this socket is out dated? It is for a 12V DC cigarette lighter cable. Many thanks Harry
  7. D

    Correct transformer for 12V waste water Pump.

    I recently bought a 12V Whale Gulper 220 waste water pump to remove water from a shower on the groundfloor of my house in Germany (no way to gravity empty the bath/shower.) I am after advice on if I have the correct 240V AC to 12V DC transformer. The pump is a diapragm pump and the instructions...
  8. A

    Help Finding Concord:Marlin Track Light 12V Fitting

    Hi There. I've got a customer who has commerical track-lighting in her kitchen. One of the fittings has gone and I'm having trouble finding a supplier to get a new one. One told me it's discontinued. The fitting brand and model is: 12V 50W Concord:marlin 2028566 MK60 QT12. It's for 230-240V...
  9. D

    12V DC adaptor showing 19V

    I was checking polarity using multimeter on some 12v DC adaptors I have. Doing this showed me the voltage. Here on my readings: 12V DC 200ma = 19V 12V DC 500ma = 16V 12V DC 1000ma = 14V Question 1): Why are they not showing 12V? Is this because all happen to be unregulated? Question 2): Why...
  10. T

    Laptop charges off 12v battery/inverter when full, stops after a while

    Hey so I have a 300W inverter and a 24ah 12v battery. This works to run and charge my laptop for a couple of hours, however after a while the laptop stops charging but I can still charge my phone off the USB that the inverter comes with. Can someone explain why this might happen, does the...
  11. M

    Replacing 12v halogens with 240v led's

    Hi A mate of mine wants me to change all his 12v downlights to 240v gu10 led's there are quite a few.He has bought the lamps and the gu10 lampholders My plan is to just do away with the 12v transformer and wire the gu10 holder in the jb. None of his downlights are fire rated/no hoods having...
  12. A

    Xpelair 12v humidistat fan

    Hello all, I am looking to install an xpelair 12v fan in a bathroom with a humidity sensor (model no. 92970AW). I can't quite work out from the instruction manual whether the humidity sensor is in the fan itself or in the transformer. due to the size of the bathroom and the position of the bath...
  13. N

    Insulation Resistance test with 12v transformers

    I am installing a C/U and the kitchen has some old Down lights installed with 10 x 12 volt transformers connected. I know I could disconnect all the transformers but I don't plan to do that as it will be a real pain due to how the plasterboard has been bodged. Some opinions suggest the IR...
  14. L

    12v AC door release conundrum

    I need to put an exterior grade switch with a timer, to switch a 12v AC solenoid which is fail-secure- so it needs a momentary voltage to open the gate. All the electronic switches I am finding are 12v DC- but I need AC. I can't just use an ordinary push to make as I need a timer, so the...
  15. D

    Quick question about 12v parking buzzers

    Hi, just joined to get the definitive answer to this conundrum. The parking speaker in my car is really quiet, so I bought a 12v DC buzzer from Maplin to replace it. The Maplin buzzer doesn't work when connected to the car, but works if powered direct fom the battery. The voltage at the...
  16. J

    12v Dual Supply Relay Problem

    Hi all, first of all sincere apologies for the lack of experience and inappropriate use of symbols! I'm putting together a remote mobile broadband station for use at events that can take a mains supply (transformed to 12v DC) or leisure battery. I've obtained a 12V switching relay which works...
  17. O

    12v LED lights/Lead acid battery help

    Hello all, this is my first post so please don't grill me too soon ;) So I've finally got mains in my shed after a few years of using 12v lighting and rolling the extension lead out when required. For a year or two, I have been running 6 x 4.5w LED clusters as main lights using a pair of 12v...
  18. S

    12V Proximity Sensor help

    Hi all I wonder if you guys can help me and point me in the right direction, we are after a 12V Proximity sensor that is waterproof to put on the back of a truck, when a solid item gets within the sensors range we want it to trigger a Light/LED, I know how to wire it up but struggling to find...
  19. N

    12v transformer open circuit.

    Hi, I've got a simple downlighter installation which comprises 2 halogen bulbs mounted inside the wooden surround of a decorative fire place. There is a simple one/off rocker switch (semi hidden) so that the lights can be turned on or off. So, I have a transformer which supplies the 12v to the...
  20. Lexlee

    Advice For 240v To 12v Output

    Hi, First post on this forum so please excuse my lack of knowledge. I have a 12v 300watt water heater /hand wash with fold down bowl (type fitted to some work vans etc) that I thought about fitting to my caravan. Here comes the lack of knowledge, 1. If I connected it to the 12v in the...

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