De bulb high frequency a lie

polyarcturus

polyarcturus

Well-Known Member
I'm just sick of all the fucking schemes.

De bulbs are build on the same pricipal as their counterparts.

Frequency has nothing to do with thier operation.

It is The same 10-15% increase that normal bulbs when operated by high frequency experience

THE REAL VALUE AND INCREASE FROM THESE STYLE LAMPS IS THE INTERNAL TEMPATURES THEY MAINTAIN AND GAIN OF FULL USE IF REFLECTOR SURFACE.
 
polyarcturus

polyarcturus

Well-Known Member
Also mag Ballasta should be capable of running de bulbs.

Tho I'm sure some manufacturers have begun using different alloys for the electrodes to counter this. And force use to buy new electric ballast products
 
polyarcturus

polyarcturus

Well-Known Member
Here's the truth.

Wait til they come out with the low frequency square wave ballasts at high watts. Then you will see the light game change When combined with DE bulbs.

Its the next step on the scheme.
 
hondagrower420

hondagrower420

Well-Known Member
I come from a low voltage background but isn't a square wave output less efficient? Like clipping and audio signal? Square wave would also kill the life span of the bulb???

I know that any ballast can run de bulbs but how is the power distributed?

is a 1000 watt de just 2 500 watt filaments?
 
jijiandfarmgang

jijiandfarmgang

Well-Known Member
polyarcturus said:
Here's the truth.

Wait til they come out with the low frequency square wave ballasts at high watts. Then you will see the light game change When combined with DE bulbs.

Its the next step on the scheme.
Click to expand...
Low frequency square wave digital ballasts have been out for a while.

- Jiji
 
polyarcturus

polyarcturus

Well-Known Member
Medved:
No, because these electronic ballasts operate with square-wave current, so the power delivered to the lamp is constant over the whole period, it has less then few 10's of us (depend on exact ballast concept, some have only about a us) cuts, what are not visible.

Standard magnetic ballast operate the lamp with the sinewave (series inductor, HX auto transformer), so the power fluctuate in the shape of the "rectified sinewave" (so about a millisecond is below 50% level).
CWA ballasts are even worse, they supply the lamp with quite short peaks, so the lamp effectively lights only for about 1..2ms from the 4.3ms long halfwave.

d
 
polyarcturus

polyarcturus

Well-Known Member
the reasearch is there you kinda prove the point for me With the "it's old tech" statement.

Plasma, induction, and leds are old as fuck too.
 
polyarcturus

polyarcturus

Well-Known Member
hondagrower420 said:
I come from a low voltage background but isn't a square wave output less efficient? Like clipping and audio signal? Square wave would also kill the life span of the bulb???

I know that any ballast can run de bulbs but how is the power distributed?

is a 1000 watt de just 2 500 watt filaments?
Click to expand...
Not it'd a single arc tube. Same length, made of ceramic and filled with sodium and some halide and other salts, in a vaccum with 2 electrodes with varying metals to pass current.

Same as its counterpart in everyway except envolope design l.
 
hondagrower420

hondagrower420

Well-Known Member
so if the research is there, if I were superior why do t we use it.

squared wave at high freq would wear out quickly. Sine wave is always better then square wave. Sine wave just don't peak and drop like square. Square wave and high freq = he's and heat = loss of energy.
 
polyarcturus

polyarcturus

Well-Known Member
But @hondagrower420 you make a very valid point, that is why I say its the next step. square wave is very stressful on the lamp thus only small wattage are generally made, because the challange is to make a large enough bulb stucturally stable for the amount of time on.

Really the efficiency of the bulb and it's ability to produce light is the average internal arc tube temps to be as high as possible while at the same dissipating it via its surroundings without losing much internal temp.


Really these de bulbs are genius, but mainly because of the hood design. Ideally a fan draws air from above the Reflector and still air is maintained withing the hood itself.
 
hondagrower420

hondagrower420

Well-Known Member
I am making the move to hid light and have been reading up on double ended bulbs. Seems very promising.

and I do like this thread because only after looking at spec sheets on bulbs and ballast came to the conclusion that you can run de bulbs on a conventional digital hps ballast.
 
polyarcturus

polyarcturus

Well-Known Member
I'm getting x2 de myself and I will be using a digital ballast to take advantage of hood design in maintaining high arc tube temps. Planning on spending about 200 per light will probably build my own hoods, and buy decently priced and made digital ballasts. most expensive part is the bulbs. :/ which are actually easier to produce I'm sure
 
polyarcturus

polyarcturus

Well-Known Member
I'm just bashing the high frequency lie.

Even of you ran a DE with an electromagnetic ballast you still gain elevated arc temp, just not to the same degree As a high frequency ballast.
 
B

bluerock

Active Member
To clarify, you are stating that DE bulbs do not require high frequency sine waves for correct (i.e. useful) operation. That the very idea is a falsehood promulgated by nefarious lighting companies. That's it, I am going back to candles. Fuck these evil lighting companies!

On a more serious note, I will look into the issue and see about initiating a "DE bulb electrical requirements" thread. Or posting it here.
 
B

BShillington

Member
All the major DE bulb manufacturers recommend high frequency ballasts in order for the bulb to reach it's advertised life.

There is a (minor) difference between the newer DE ballasts but the cost difference from manufacturers are minimal.

I'm in the middle of getting some "samples" from Chinese manufacturers from alibaba and here's an oscilloscope reading they provided.

It seems like all the DE ballasts are at least 80+ kHZ.

https://imgur.com/HdLoXLN
 
jondamon

jondamon

Well-Known Member
bluerock said:
To clarify, you are stating that DE bulbs do not require high frequency sine waves for correct (i.e. useful) operation. That the very idea is a falsehood promulgated by nefarious lighting companies. That's it, I am going back to candles. Fuck these evil lighting companies!

On a more serious note, I will look into the issue and see about initiating a "DE bulb electrical requirements" thread. Or posting it here.
Click to expand...

Just Incase you don't know the very first ever production lighthouse bulb is still in operation somewhere in the world (unsure where) but OSRAM and a few other companies realised they'd soon be out of business if light bulbs lasted forever so they built into bulbs planned obsoletion and failures.

I saw a documentary once about planned obsoletion in everything we buy. It was called something along the lines of "the men who made us buy stuff"



J
 
polyarcturus

polyarcturus

Well-Known Member
BShillington said:
All the major DE bulb manufacturers recommend high frequency ballasts in order for the bulb to reach it's advertised life.

There is a (minor) difference between the newer DE ballasts but the cost difference from manufacturers are minimal.

I'm in the middle of getting some "samples" from Chinese manufacturers from alibaba and here's an oscilloscope reading they provided.

It seems like all the DE ballasts are at least 80+ kHZ.

https://imgur.com/HdLoXLN
Click to expand...
Correct I read the same info as you while I'm my research as well, frequency rectifiers.
 
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