are several low-wattage lightbulbs more efficient than one big one?

[dpopiz]

if I have say 4 50W lightbulbs, would they combined give off a greater amount of light than a single 200W bulb?

and what about speakers?
if I have 4 speakers each with a 100W amp, do they give me more sound than a single speaker with a 400W amp?

 

[RagingBITCH]

You're joking, right?

 

[Tom]

light output is measured in lumens, not watts.

sound output is measured in decibels, not watts.

There is no way to measure light output or sound output by watts.

 

[Zenmervolt]

Wattage is just energy used. It's not a measure of useful output.

A heavy-duty 60 watt bulb may put out as few as 490 lumens, while another 60 watt bulb may put ou 680 lumens.

Likewise, one 100W speaker may only be capable of 90 decibels, while another may be capable of more than 100 decibels.

There are way too many variables here.

ZV

 

[JulesMaximus]

There are several low wattage light bulbs and probably a few burnt out ones on this forum...I'm sure a few of them could help answer your question.

 

[Schrodinger]

*ahem* someone sounds like they are attempting an MJ grow with fluros... (PS forget fluro and go with the high pressure sodium "son agro" by phillips, its good for both veg and flowering states)

what, why are you guys looking at me?

 

[0roo0roo]

no its a valid question. i think its 60watts that aren't very efficient. just divide out the watts per lumen. something about the 60 not getting quite hot enough.. or something. i'm lazy, just divide it out!

i read this somewhere i cannot remember where..oh wells.

 

[SelArom]

if light works like sound (seems like it does) then adding more light bulbs in one area of lower wattage WILL increase light, but logarithmically (or something). meaning that you'd have to add a crap load of lights to get just a little brighter

that said, if you spread out a bunch of smaller watt light bulbs around the room, you should get better lighting than one big light in the center.

 

[OffTopic1]

Even light is better than single hotspot. The room will look brighter if you eliminate shadow, and white colour walls/ceiling/funitures will also help.

Luxeon star LED 1 watt = 30 lumens

Shanghai Yaming Compact Fuorescent Lamp Twist 7 watt = 350 lumens
Shanghai Yaming Compact Fuorescent Lamp Twist 23 watt = 1173 lumens

GE compact fluorescent 7 watt twintube = 400 lumens
GE compact fluorescent 13 watt twintube = 800 lumens

T5s/T8s fluorescent tube 1 watt = 60 lumens

Incandescent clear 40 watt = 350 lumens
Incandescent frosted 40 watt = 340 lumens

Metal Halide can get as high as 1 watt = 70 lumens

High pressure sodium can get as high as 1 watt = 85 lumens

High pressurs mercury can get as high as 1 watt = 52 lumens

 

[gabemcg]

Originally posted by: Schrodinger
*ahem* someone sounds like they are attempting an MJ grow with fluros... (PS forget fluro and go with the high pressure sodium "son agro" by phillips, its good for both veg and flowering states)

what, why are you guys looking at me?

Overgrow

 

[Eli]

Originally posted by: gabemcg

Originally posted by: Schrodinger
*ahem* someone sounds like they are attempting an MJ grow with fluros... (PS forget fluro and go with the high pressure sodium "son agro" by phillips, its good for both veg and flowering states)

what, why are you guys looking at me?

Overgrow

While it's the best of the best, it probably shouldn't be linked to here ......

 

[ribbon13]

I use overgrow on my ginseng. Seriously. I have a killer clone chamer setup that would easily grow Sativa with >18% D9THC, but ginseng is legal, and very profitable.

Besides, there are places all over the world where its legal to grow Marijauna. Alaska for one...

 

[Ready]

Originally posted by: dpopiz
if I have say 4 50W lightbulbs, would they combined give off a greater amount of light than a single 200W bulb?

and what about speakers?
if I have 4 speakers each with a 100W amp, do they give me more sound than a single speaker with a 400W amp?

I'm not sure, but can i have $5 anyway:?

 

[Eli]

Originally posted by: OffTopic

Even light is better than single hotspot. The room will look brighter if you eliminate shadow, and white colour walls/ceiling/funitures will also help.

Luxeon star LED 1 watt = 30 lumens

Shanghai Yaming Compact Fuorescent Lamp Twist 7 watt = 350 lumens
Shanghai Yaming Compact Fuorescent Lamp Twist 23 watt = 1173 lumens

GE compact fluorescent 7 watt twintube = 400 lumens
GE compact fluorescent 13 watt twintube = 800 lumens

T5s/T8s fluorescent tube 1 watt = 60 lumens

Incandescent clear 40 watt = 350 lumens
Incandescent frosted 40 watt = 340 lumens

Metal Halide can get as high as 1 watt = 70 lumens

High pressure sodium can get as high as 1 watt = 85 lumens

High pressurs mercury can get as high as 1 watt = 52 lumens

This guy knows his lights.

Let's add a few more.. Hmm..

40W GE Soft White = 490 lumens
60W GE Standard = 865 lumens
60W GE Soft White = 840 lumens
75W GE Reveal = 830 lumens
75W GE Soft White = 1170 lumens
100W GE Soft White = 1690 lumens
100W GE Extra Soft White = 1585 lumens
100W GE Reveal = 1260 lumens


40W Philips Soft White = 500 lumens
60W Philips Soft White = 860 lumens
75W Philips Soft White = 1180 lumens
100W Philips Soft White = 1620 lumens
135W Philips Frosted = 1760 lumens
150W Philips Frosted = 2850 lumens
200W Philips Soft White = 3675 lumens
300W Philips Frosted = 6300 lumens

100W Philips Duramax = 1675 lumens
150W Philips Duramax Soft White = 2310 lumens
150W Philips Duramax Clear = 2850 lumens

60W Sylvania Soft White = 870 lumens
75W Sylvania Soft White = 1180 lumens
90W Sylvania Energy Saver = 1510 lumens
100W Sylvania Soft White = 1710

yeah, im bored.

 

[Eli]

Lately, I've been getting no-brand Inside Frost indoor lightbulbs at Home Depot.

60 watts, 890 lumens.. and each pack of 4 is only like 69 cents.

I've actually been meaning to change the few remaining normal bulbs to CF bulbs though...

 

[Hayabusa Rider]

Well, I just happen to have an answer to this one

All else being equal, a single light is more efficient. Whether is is more suitable for an application is another matter. Those 4 bulbs would give off more even lighting, reducing shadows, but if you wanted more light to read a book, the single bulb is better.

 

[dpopiz]

Originally posted by: JulesMaximus
There are several low wattage light bulbs and probably a few burnt out ones on this forum...I'm sure a few of them could help answer your question.

yeah I can tell...man, for some reason it annoys me when a moron "explains" to my why my question is stupid

 

[0roo0roo]

40W GE Soft White = 490 lumens =12.25 lumens per watt
100W GE Soft White = 1690 lumens =16.9 lumens per watt

 

[sharkeeper]

Low pressure sodium (LPS) lamps are approaching 200 lumens/watt. Too bad the CRI is (for all intents and purposes) 0. They are good for security lighting and for lighitng of tunnels that run east and west. (used for sunbound driver vision acclimation zones)

 

[Howard]

Bad analogy with speakers. Depending on where they're placed and what frequency they're playing, they could give you absolutely 0 output at certain spots. Besides, few home speakers can handle 400W continuously.

 

[OffTopic1]

This guy knows his lights.

I don't know much about lights, However, my photography background and the home renovation taught me alot about lightings.

You need 30 foot candles for reading and 40 fc for high activities. Therefor, I designed my living room with even 35 fcs dimable, and kitchen with 45 fc. I was going to design my own T2s lighting (1/4 inch tube) under cabinet lightings, however the city aholes wouldn't approve my design due to archaic electrical codes.