But it would be a safe voltage to apply to the lights initially - if they don't light, then the OP can add more volts.
LED Christmas tree
- Thread starter RepairingDave
- Start date
But it would be a safe voltage to apply to the lights initially - if they don't light, then the OP can add more volts.
Sponsored Links
Or more likely: they come onto a help forum on the internet and someone recommends testing it on a very low voltage which does nothing... so they throw it away thinking it's broken.
So, taking your theory a stage further - they apply too high a voltage, blow that lot, then throw it away. The difference is what?
The difference is: I'm suggesting using the voltage the system is designed for, IE the correct voltage.
Sponsored Links
We don't for sure know what voltage it is designed for, do we? LED's can be run on much higher voltage than their design voltage, proving the supply is pulsed on and off rapidly, with a suitable mark space ratio. I'm pretty sure, feeding with 12v, will provoke a response from them, without much risk of destroying them, if no the OP can then try more volts. If however, the OP starts high, and destroys them, there is no way back..
- Joined
- 27 Jan 2008
- Messages
- 25,314
- Reaction score
- 2,959
- Location
- Llanfair Caereinion, Nr Welshpool
- Country
I have a collection of power supplies for printers and routers 24 volts some AC and some DC, and I am sure I could find one to test with. But since I often leave Christmas lights unattended, I would simply buy new.
Oh and 24V
24V AC. Which means each LED will be only be lit, for less than half of the time, 50% duty. Tested on DC, they would be lit the entire time 100% duty.
Note the difference, and why I suggested testing with 12v.
Let's see if OP comes back with results.
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
Sponsored Links
