New (October 2013) LED wingtip landings light discovered

[BobTurner]

Originally Posted by Bill Boyd

...I am starting to wonder about this supplier.

Ordered from Kaidomain March 8th. Order shipped the 17th per their email. I guess the slow boat from China is... slow.

Does this match your experience?
.

It matches mine! We were probably in the same boat!!
Order received March 10
Shipped March 17 (a week? Maybe they had to go out and dig up the rare earth elements?)
left Hong Kong March 22
Cleared US customs LAX March 25
Today, still sitting in SoCal (Compton)

[rv7charlie]

I might agree about being spoiled by Amazon, but for the last year or two about half the time when I order 'Prime' it takes 3 to 7 (or 8) days to get here. I call and complain, and their standard answer now is that '2 day shipping means we promise to ship within 2 days'. Nonsense.

I look at the Chinese order delays like this: If I wanted a rarely made part from a machine shop, they might charge me $1000 to make it once for me, but if I wait for them to do a run of them, it might only cost $100. Remember, this stuff often comes from China with minimal or even *free* shipping. I can often live with a few weeks' delay for them to fill up a shipping container, if it saves me 80% over getting it next week.

Charlie

[Radioflyer]

Rocket bob or others...i would like to see a picture how these Trustfire 3T6 led assemblies are modified for direct electrical connections. These look like the perfect upgrade to replace my ancient PAR 36 bulb.

[Ben Meyer]

Originally Posted by Radioflyer

Rocket bob or others...i would like to see a picture how these Trustfire 3T6 led assemblies are modified for direct electrical connections. These look like the perfect upgrade to replace my ancient PAR 36 bulb.

Here too! Curious as to how the brain trust mounted these.

Ben

[rocketbob]

Originally Posted by Bill Boyd

...I am starting to wonder about this supplier.

Ordered from Kaidomain March 8th. Order shipped the 17th per their email. I guess the slow boat from China is... slow.

Does this match your experience?

They'll get here, eventually.

[rocketbob]

Originally Posted by Radioflyer

Rocket bob or others...i would like to see a picture how these Trustfire 3T6 led assemblies are modified for direct electrical connections. These look like the perfect upgrade to replace my ancient PAR 36 bulb.

You buy the DC-DC converters from Amazon. You'll need to do some soldering. On the -7 you just heat shrink the DC-DC converter board and tape it inside the wingtip with duct tape.

[Radioflyer]

I was actually wondering about wire connections to the bulb itself. I see springs. Do those come off or does one ignore them and solder to nearest convenient contacts? Maybe this will be obvious once the unit is in hand, nut wondering in advance.

[rocketbob]

Originally Posted by Radioflyer

I was actually wondering about wire connections to the bulb itself. I see springs. Do those come off or does one ignore them and solder to nearest convenient contacts? Maybe this will be obvious once the unit is in hand, nut wondering in advance.

Desolder the springs and solder the wires to the PCB where the springs were soldered. It takes a fair amount of heat to do.

[Bill Boyd]

The flashlight heads from Kaidomain made their way here today. 4 weeks from order to delicvery. They are sweet little units. Almost retina-melting bright. They seem to run cool at 10.3V and pull 1.2A from the 13.8V bench power supply into the DC-DC converter. Interestingly, I could fit three (3!) of these inside the circular cutout that is already made in the Olds landing light bracket I inherited with my partly-assembled RV-10 wings. That kind of lumen output would be stupid bright. They'd see me wig-waggin' on 25-mile final

For those interested in the weight penalty, the DC-DC converter is 2.8oz and the flashlight heads are 3.8oz each. The converter I am referencing is this one:
https://www.amazon.com/dp/B071CWMRYD...&pd_rd_w=Ecmji

Now to decide if I'm going with 1, 2 or 3 of these puppies in each wing...

[rocketbob]

Originally Posted by Bill Boyd

Now to decide if I'm going with 1, 2 or 3 of these puppies in each wing...

There's virtually no drawback to installing as many as you can fit. They are melt-your-face bright in multiples.