Vasco, I am about electrically minded as a piece of burnt toast and I managed to make one.
Got the bits from a local electronics
shop after playing on this site MetkuMods - Because you love your hardware!
to work out the resister thingy size. Blew up a couple due to my 'more power Tim' syndrome but 3rd go I used a variable resister and it's all go.
Got the electrical
bits, a piece of thin plywood
, a hot glue gun and a nice burn in the kitchen table (No sorry Dear, no idea where that came from...Opps). Made it and stuck it all in a jar just like yours is. Run a lead to a ciggy plug
which I plug
in to the boat, I have put in a few ciggy plugs in the boat as lots of stuff runs 12V using those.
Mine is basically just like yours but has LED's rather than a bulb.
As I aimed the LEDs out horizontally they don't appear that bright but from a distance they are seen as a very intense pin prick of light and it does catch the eye very well. And as I hang it off a the back or forestay it swings a little so it's a semi-flashing intense pin prick which makes it even more eye catching. I've stepped back just over a mile from the boat and while not big it is very noticeable 'something' has a light on it. Hopefully most would realise that 'something' is a boat and manoeuvre accordingly.
Now I'm such an electrical
legend (in my own lunchbox if no one elses) I'm trying to make one the same but solar
powered. If your lights suddenly go off it could be me playing with that again so sorry about that in advance
I did have some of the garden solar
ones but they do tend to fade away in the early hours and there is talk of the local Maritime Authority banning them due to that down this way.