For Mr 1olbull, sir.

barbagris

Mad Scientist
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1979 Guzzi V1000G5 - 2018 KTM 790 Duke
The taillight conversion thing.

Muddling about on ebay I have pretty much just fallen off my chair. I think I have found a ready made heat sink.

60 X 120mm Heat Sink for 1W 3W 5W 10W 20W RGB White/Warm White LED | eBay

It will require some machining and maybe a small fan - but I am enthused.

It will allow all sorts of LED options. No really! - I am pumped.

Ordering a pack of them now. The LEDs are easy compared to this find.
 
Ol' Graybeard,
OK - now ya gots me stoked!
A decent (or likely excellent) taillight for the rocket???
Can it be true?!?!?
 
The LEDs I hope to use should pump out almost 1200lumens (3*400) on Brake. That is the raw value. We shall see.
May change depending on the electro-meisters feedback on PWM for the tail(running) option.

Now I just have to open the taillight up - thanks to @laraza I have a spare.
 
The LEDs I hope to use should pump out almost 1200lumens (3*400) on Brake. That is the raw value. We shall see.
May change depending on the electro-meisters feedback on PWM for the tail(running) option.

Now I just have to open the taillight up - thanks to @laraza I have a spare.

1200 raw would be about like a fair torch real value, no?
Perhaps 800 or so depending on atmospheric conditions?
Difficult to put into real world perspective without a good light meter test.
 
1200 raw would be about like a fair torch real value, no?
Perhaps 800 or so depending on atmospheric conditions?
Difficult to put into real world perspective without a good light meter test.
More than atmospherics it depends on how much light the lens gobbles. But think on this - a 21W Tungsten bulb is about 400 new and spec'd at 160-ish - but generally agreed to be about 200-250lm. The 5W bit naturally MUCH lower. tbh I think I will end up having to tame it a bit.
 
More than atmospherics it depends on how much light the lens gobbles. But think on this - a 21W Tungsten bulb is about 400 new and spec'd at 160-ish - but generally agreed to be about 200-250lm. The 5W bit naturally MUCH lower. tbh I think I will end up having to tame it a bit.

Amigo,
You need to get yourself a light meter so you can do some testing that gives us real world values.
There are inexpensive incident meters out there good for your purposes.
Look up the Extech EX30
 
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You can get free ones in the Google App Store. :whitstling:

Sorry Amigo,
I have used several apps regarding motion and liight.
None I have seen compare regarding reasonable accuracy.
Give me a link and I shall check it out.
How many pianos have your tuned with your cellphone?
 
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