[PoweredByLove]

maybe if you only want buds at the very top of your plants. cfl and led screw bulbs are only produce useful light to 12 inches. your average hps 100w and above light is useful 2+ feet away.

also most of the heat in an screw in led/cfl bulb comes from the ballast built into the base of the bulb. most of the heat in a hps comes from the actual bulb itself.

i dunno wtf you guys are on about but im outta here. peaces.

[angelgoob]

pfft penetration lol.

create a full canopy ftw.

[Carraxe]

"penetration" is something related with sex. I don't know why they started to use this term, but in the field of electricity, lighting and lighting efficiency this term doesn't exist.

Cheers

[angelgoob]

Inverse square law.

We all know.

That's why you use 90 degree lenses.

It's funny CMH and HPS are coming out with "new technology" as their stupid old street lamps are being replaced with LED! hahaha

[Carraxe]

Originally Posted by angelgoob

Inverse square law.

We all know.

That's why you use 90 degree lenses.

It's funny CMH and HPS are coming out with "new technology" as their stupid old street lamps are being replaced with LED! hahaha

You know, in public lighting ICR is veeeery important, that's why they are replacing. MH were the lamps with a good chromatic response and have been surpassed by LEDs.

Now is the moment we growers start replacing our sodium lamps by leds. The technology is there, efficiencies are already these of HP. We just need price reductions. I'll keep my 600W HPNa for a couple of years.

Cheers

[MJPassion]

Imo, no experience yet...

LEDs are the future.
They've got a relatively long life (when manufactured well) & their spectrum is improving constantly. I've been looking at manufactured units made by CA Light Works because I'm nowhere near an electronics parts supplier for DIY. (Fawk)

@Easy7,
I'm curious where you got that fugure from? & has it been tested in the real world?
Is that figure good for any electrical conductor or is just copper or aluminum?
The physycal differences in the various conductors leads me to believe that what you state is a simple generalization. Ie... Silver oxide will conduct electricity much more effeciently that aluminum. Since heat is a result of friction wouldn't the material that has less resistance to electron flow run cooler? (If even a bit)

[angelgoob]

CFL many bulbs

HPS inefficent

Cree CXB3590's. Wooooo!

[RedACD]

COB LED's are the future.

[Koondense]

Cob leds and quantum boards are not the future, they're the present most efficent light sources.
I grow my second year with crees and would never change for non-led lights, until the next revolution.

Cheers

[burmese]

if i dont care about investment, energy and yield than i would go quality cfls T5
if i need yield then go LED
//HPS and MH are dangerous for heat in me//