Anyone see these yet?

[Rizup]

Just wondering if you guys had seen these yet? Looks interesting.


New Metal Halide Bulbs


Mike

 

[Harleyguy]

I would assume that each "bulb" is only 125w's or I would imagine that a standard Pulse start 250w ballast wouldn't run it. I would also assume that it would have the combined output of a standard 15K bulk... Cool gimmick though...

 

[edwing206]

<a href=showthread.php?s=&postid=14914570#post14914570 target=_blank>Originally posted</a> by Harleyguy
I would assume that each "bulb" is only 125w's or I would imagine that a standard Pulse start 250w ballast wouldn't run it. I would also assume that it would have the combined output of a standard 15K bulk... Cool gimmick though...

It's obviously a 500W, 30K bulb. lol

 

[luther1200]

I don't know if its more powerful or not. But a dual fillament bulb isn't new, maybe to the hobby it is. Thats how most brake lights work. 1 filament is the running light and the other comes on when you hit the brake pedal, making the light brighter. So it will definetly be brighter with both lit compaired to just 1. But the question is, is it 2 250w or 2-125w.

They could run 2 bulbs off 1 ballast it they ran the filaments in a parallel cicuit. This link gives a brief exlanation. The top 1 is a series circuit, the bottom 1 is a parallel circuit.

http://images.google.com/imgres?img...t:en-us:IE-SearchBox&rlz=1I7GGLR_en&sa=X&um=1

 

[95accord]

interesting.
i wonder if you can have a dual color bulb......have one side in the 10K and the other in the 20K....now that would be cool

 

[Harleyguy]

<a href=showthread.php?s=&postid=14915052#post14915052 target=_blank>Originally posted</a> by 95accord
interesting.
i wonder if you can have a dual color bulb......have one side in the 10K and the other in the 20K....now that would be cool

That's what it is.... oh... were you kidding???

 

[mlsund]

question and maybe luther1200 understands since it's a kind of a circut question

Although the voltage (wattage) would not increase across the circut don't you think that by having two filaments this would increase your heat output?

 

[luther1200]

It's hard to say how it would compair to a regular bulb. If it is truely to 2-250w bulbs in 1 I would think it would be hotter. But if it's only 2-125w bulbs I would think it would be the same.

 

[95accord]

I thought it was simply double filament so that it could double the light output in a single bulb........i wasnt thinking colors.


the potential for such a bulb (if designed well) could be great.

it would be interesting to find out how this bulb is designed and see if it can run off a single standard ballast or if it would require an upgrade

 

[95accord]

here's some extra reading on these bulbs

http://www.reefbuilders.com/2009/04...p-advanced-lighting-solutions-close-personal/

 

[Rizup]

They will work on standard pulse start ballasts if I am not mistaken. The beauty of this bulb is that you can get the great growth that a 10K offers and also the great look that a 20K offers. It is like having two 250 or 400 watt bulbs in the same reflector. It will not generate any more heat than a standard bulb, because only one of the filaments is lit at a time.

Think about it - when you are at work you run the 10K for growth, and then just before you get home it switches to 20K! Not sure how they will compare to other bulbs as far as color and output, but for $100 this is a great idea.


Mike

 

[jayk198030]

Nice bulbs. sounds cool. i may someday try them. idea is nice too.hopefully we hear good things about them.

 

[dvanacker]

I see this idea being good at cost savings. You get the use it for the length of two bulbs but the manufacturer saves money on the arc encloser packaging shipping etc. The bulb is around 100dollars which works out to 50 a bulb.....cheap. I wonder what the 20k looks like....