Aircraft Landing Light

njs05

Newly Enlightened
Joined
Oct 21, 2007
Messages
8
I have read people talking about aircraft landing lights... and the "sleeper" in one of those flashlight reviews... but how do I get one.. someone posted a link a site where the price was $15 or something ridiculously low for the bulb and enclosure... but what keeps everyone from buying one of those, hooking up two wires from a battery... and being on their way with a BRIGHT light? What am I missing here?
 
Maybe a little advanced. But the great thing here is that there is a wealth of experience to help bring the inexperienced up to speed so that the advanced NOW is not so advanced LATER. Been there myself.

A 30V 20+ amp pack is not really all that big a deal once you understand a few basics. Learning and experimenting is really the best part of existing here in CPF.
 
30 volts? What? Why? I've never seen anything that runs on 30v.... Is that what an aircrafts electrical system runs at?
 
Isnt there a way to just wire two batteries at 12 (14.4) together in series or parallel or sonething and then the voltage is double instead ofthe current? How would i go about doing that?
 
You might be able to coax Mad Maxabeam into making you one, turnkey.

BVH, not sure if it will change, but as of several months ago MadMaxabeam has moved on. :sigh:

He is really a great guy, and I wish him the very best, but don't think he is coming back. :awman:
 
Isnt there a way to just wire two batteries at 12 (14.4) together in series or parallel or sonething and then the voltage is double instead ofthe current? How would i go about doing that?
A pair of 12V SLAs wired in series would only be about 24-25V, and even less under load. Five large 6V SLAs might work better. Some of us are simply using many NiMH or Lipo/Emoli/etc. cells in series. The general idea is using 24 NiMHs, or possibly 25 or 26, or 8 (possibly 9) Lipos to reach the specified 28V and hopefully a few volts over to get better output.

From the Welcome Mat:

Q: What are series and parallel?
A: Series connections have a device's positive terminal connected to the next device's negative terminal. This is what you get when you line up some ordinary C-cell alkalines (for example) end-to-end, like in a Maglite or other flashlight. This arrangment adds up the voltages of the cells. Such a battery neither handles more current nor contains more mAh capacity than a single cell. This is the opposite of a parallel configuration, which has positive terminals joining together and negative terminals joining together. An example is those 3AA>1D adapters where all three AA cells' positive terminals meet at the top, and all their negative terminals meet at the bottom. Such a configuration has the same voltage as a single cell, but can handle more current draw (or contains more capacity). For example, 1AA alk can push about 500mA at around 1.5V for about four hours. 2AA alks in series can push 500mA at around 3V for about four hours. 2AA alks in parallel can push 1000mA at around 1.5V for about four hours (or 500mA for eight hours, and so on).

Also from the Welcome Mat:

Q: What does "overdriving" mean?
A: Every incandescent bulb has a rated nominal voltage, which is basically the manufacturer recommended driving voltage. A bulb connected to a lower-voltage source than is recommended with have weaker and more orange-tinted output, but it will have increased durability and lifetime. A bulb driven above spec will have whiter output, but decreased durability and lifetime. A given bulb's efficiency actually increases along with drive level.
 
28vdc- some of the systems anyway

Nothing new there, the automotive industry has been toying with the idea of moving from the 12v system to a 24-28v system for at least 5 or 6 years.
 
I am powering my Larryk14 spotlight with 5 x 6V SLA batterypack. Cheap solution, about $60. They are 10 Ah batteries. Works very well, but the batteries are big and heavy and need to be carried around in a backpack. I kind of get kick out of that, makes it feel even more special device.:)
 
The origional sleeper is sleeping in my gun safe. If anyone is interested in it I might wake it up?? :devil:

Andreas
 
@ Andreas,


OH F****** hell yeah, awake that bad boy oh plz. I have been dying to see real hq beam shots of the sleeper. Plz Plz Plz Plz Plz Plz Plz.


Maybe get ya Megaray Out too, OHH man you got me all pumped.

SLEEPER BEAM SHOTS + WIDE ANGLE, I think I speak 4 alot of ppl here how havent seen enough of the Sleeper. WE WONT TO SEE IT!!!!!!!!!!

BTW hom many lumens does the sleeper chuck out? 10,000?
 
830watts chizel? plz show some night pics. How do you power it? Off the cars electrical system? You wouldnt get much hrs with the bulbs tho. Id love to have 36v batt setup that recharges to power some 400w lights i had in mind. I guess lightforce hid lights would look like a dull candle to that 830w light you got. :)
 
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