On 23 Dec 2017 09:37:35 GMT, Bob Eager wrote:

On Sat, 23 Dec 2017 00:48:27 +0000, T i m wrote:

On Sat, 23 Dec 2017 00:19:29 +0000, F news@nowhere wrote:

snip
Because you are running AC there isn't much that you could do easily
to lower the output voltage to 4V (AC), especially if the load varies
a lot (no lights on, all lights on etc).

Thanks, but I'm running them from the AV to DC adapter that I bought so
they're on 4.5v DC.

Ah, sorry, my bad (it's late I'm tired ... ). ;-)

Ok, so it would be even easier to drop the voltage a bit so that you
don't see the extra brightness / less change in colour and may even
prevent them from dying early.

Basically, if you were to fit a silicone rectifier diode in series with
one of the leads to the lights, it will drop about .6V and may make it
more like it was originally?

4.5V is 25% higher than it was designed to run

Um...?

LOL ... I did say I was tired didn't I Bob. ;-(

Ok, how about a 12.5% increase? (which is still 'quite a bit' where
LEDs are concerned). ;-)

Cheers, T i m