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12v

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  1. W

    12v cable thickness for solar panel installation

    Hi there, I'm trying to install a 12V solar panel in my caravan. I've worked out that I'll need a 100W panel, so presuming it's working at 100% efficiency that gives me a current of 100W / 12V = 8.33A. I reality the current will be more like 6A (I think). I'll be running the cable 7-8m to the...
  2. D

    Transformers... 12v to 230v to 19v... Or 12v directly to 19v...

    Hi chaps, I'm in the midst of kitting out my motorhome (converted Renault Master). Going to have a 1000w inverter in there to feed a couple of 230v outlets. Trying to work out how much more efficient it will be to get a charger for my laptop which will convert directly from the 12v vehicle...
  3. C

    12V water pump

    Hi All, I've just purchased a 12v Water pump for my van. 12V 100PSI 4L/Min High Pressure Diaphragm Water Pump FOR RV /CARAVAN /BOAT | eBay What's the best way to install this? I want a switch at the back of my van I can use to turn it on and off i.e. a standard "switch". 1) How do I...
  4. C

    12v plinth lights plug top

    Hi I need to install some plinth lights and have an old fcu socket that used to power an under cupboard fridge. However the cupboard units are not clumped together but are in 3 different sections. Can you buy plinth light kits where you can run a 12v extension feed off the module box to power...
  5. T

    24v start on 12v system

    Hi new to the auto electrics and on with a project and very stuck in a sticky situation was wondering if someone could give me any pointers ! I am up heaving my engine out and replacing it with another but its 24v and the vehicle is staying 12v ! so my question is can you help by telling me how...
  6. S

    What is the current 17th edition regs for 12v SELV Humidisat extractor fans in Zone 1

    As I understand it, they should have their own dedicated RCD After asking Mr Google I found this reference fro 17th Edition 2010Low Voltage Airflow Fans – Be Extra Safe The Airflow range of SELV (Safety Extra Low Voltage) fans fully comply with the current IEE wiring regulations 17th edition...
  7. K

    Charging Dell laptop from 12V cigarette socket

    I wanna charge a Dell Latitude E6500 laptop from the cigarette socket (12V), and have now tried two Vanson laptop adapters (SDR-100W and SDR-120W). Both deliver a weak beeping and does not charge the laptop battery. According to the regular power adapter the Laptop need 19.5V and 4.62A. On the...
  8. K

    For Sale Used PAXTON : 411-381 Net2 classic 1 door controller - 12V 2A PSU + Metal cabinet

    I have a job lot of used (working when installed) "411-381 Net2 classic 1 door controller - 12V 2A PSU, Metal cabinet" that have been stripped out of a commercial premises as part of work to restore the building to how it was before the lease expired. Product information and picture here...
  9. S

    PC PSU and 12v LEDs

    I have been told I can power leds from my old PC PSU as a cost effective way of using my old unused computer. I need advice on what I can drive with them. I want to use 10w square LEDs which require 10-12v DC and 1050mA each. I am aware that most of the outputs are 12v from the PSU. Does this...
  10. C

    12v reading on all the negative connections on 240v system

    Had a strange experience today. customets t&p valve keep blowing on their hot water heater (sealed pressurised electric immersion heater fed from a water pump, pped in from a 5000 litre holding tank ) thought it might be the faulty valve first, after testing that and it being fine I went onto...
  11. T

    12v on socket ring main after isolation.

    Hello all! I've come across a bit of a problem today as I was changing a socket and got a tingle (Isolated the MCB of course). I tested the voltage and it was pulling 12v. I've found when you isolate the upstairs lights the 12v on the upstairs sockets disappears. Its a 17th edition dual RCD...
  12. Y

    How can you tell 12v from 24v components?

    Ok, I need some help here, cause I can't find the answer anywhere. Lets say you have this instrument cluster and the 12v or 24v sticker along with the part number is worn out. Also, the lamps are missing, so you can't read their voltage engraving as well. How can you tell the voltage of it? How...
  13. 4

    Pir for 12v led plinth lightd

    Hi there from a newbe a friend has asked me to fit plinth lights to his stair case which are 12v led warm white fitting the lights wasn't a problem the problem is I can't find a pir to switch them the transformer/driver is the three pin type what makes it worse is he wants two pir's one top one...
  14. A

    12v Short in car wiring.

    Hi, first post so be gentle!! I have had a bit of an issue with my car recently. I have a 2008 Honda Accord and had to MOT the car a week or so ago. On my pre-checks I noticed that the rear fog was not working. Bulb had blown so changed that but still didn't work so checked the fuse and found...
  15. F

    12v - 240v Inverter

    Hi, I dont know if this is the right place to ask, but I am sure you have more knowledge on this than myself I am looking to buy a 12v inverter so I can use the car power to get 240v What I am really looking for is a little understanding, I understand Current, but Watts im not too sure The...
  16. uksparks

    12v Relay

    Hi, I think I asked this before, but have a 12v alarm output that I want to switch a 230v load. Can you get a din rail mounted relay or Contactor?
  17. T

    MR16 12v to GU10 240v conversion

    Hi, I've 26 MR16 12v downlights in my property. At the moment they're running 50w halogens, LED's would obviously be the more efficient option. I think I've got a pretty solid plan for converting but I'm hoping someone will be able to point out any glaring omissions :stooge_curly: Currently...
  18. A

    12V Dual Pole Relay connections...

    Hi all. I have just received a 12V 2 pole 2NO and 2NC and there's no instructions on how to connect it to the power. Normally being a coil negative swapped with positive would make no difference however, this has an LED light and a resister. I am thinking the 12V life wire should before the...
  19. G

    12v garden lighting

    I have a garden lighting job coming up could do with a couple of pointers as I tend to lack confidence sometimes. Customer insisting on using crappy screwfix 12v spike lights. The lights don't come with transformers. So i am planning on putting 12v transformers in an ip54 box and filling the...
  20. P

    Wheelchair Trike - 12v motor for tailgate operation

    ​Hello to all, Name is Alan Stanley, i have been a paraplegic for 27 years I am rebuilding a wheelchair accessable trike i have purchased to be a fun runabout for me the whole thing is stripped at the moment and it got me to thinking of a modification i could make to it. Currently it has a...

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