LED household bulbs?

So I've been trying to find ways of lowering my electric bill and I I've been buying LED bulbs to replace my cfl's to squeeze as much out of energy usage. Not once did I even think about using this style bulb for growing until I noticed the wide range of Kelvins and Lumens these newer models can put out at a fraction of what a CFL does. Has anyone even attempted to even do a test grow with these? They have a huge range with massive lumens that blows CFL's away at a fraction of the watt usage. Here's a picture of one bulb I've been putting through the house. It is a low lumen but they've even got 2000 lumen LED's that use ridiculously low wattages and perfect kelvins. Any thoughts on this anyone?!?

Here's another picture of this particular bulb. There's so many options now in this class of lighting that I'm really curious to see if you can grow with them.

Well let's do some quick math. The bulb you have there throws off 450 lumen / 7 watt = 64 lumens per watt.
A standard 27w CFL throws a little higher at 69 lumens per watt.

You would need four of your bulbs to match the amount of lumens emitted from a single 99 cent 27w CFL. Which seems strange to me since LED are usually much more efficient like you mentioned. So, I'd say no to that particular bulb.

Plants don't give a damn about lumens

What they care about is how many umols/m^/sec

You don't want globes unless they are for side lighting

CREE makes a nice LED Spot Light, which allows all the light to reach the plants

pet flora, can you explain that? lol pretty sure plants care about lumens or amount of light.

Screaming trees said:

Has anyone even attempted to even do a test grow with these? They have a huge range with massive lumens that blows CFL's away at a fraction of the watt usage. Here's a picture of one bulb I've been putting through the house. It is a low lumen but they've even got 2000 lumen LED's that use ridiculously low wattages and perfect kelvins. Any thoughts on this anyone?!?

Click to expand...

http://rollitup.org/t/cree-bulb-vs-23-watt-cfl-veg-out-can-cree-take-on-the-light-weight-champ.644350/
or even better
http://rollitup.org/t/flowering-with-cree-bulbs.656542/

Screaming Trees, 65lm/W is poor efficiency in 3000K (or any K) relative to what is currently available. We are getting up to 140lm/W in 3000K. Part of the reason the houshold bulbs efficiency is so low is because of the plastic diffuser which I highly recommend you remove if you buy the light. Good luck!

To get super specific @frizzlegooch , lumens is an indicator of the ability of the lamp to be seen by the human eye. It is a measurement based on 555nm, which I guess ultimately everyone can see 1st above all other spetrums. Lumens also happens to fall mostly in the PAR range by coicidence, other than that, it is rather useless.

Lumens cannot be compared from lamp to lamp. An umol rating is usually the bare minimum to compare fixtures of either the same shade [2700k, 660nm i.e.] or even different color temperatures. Surprise, most companies don't put out umol's rating these days otherwise they wouldn't sell shit.

The Cree's a good, 9.5w versions have been seen @ 3x what a 26w cfl was putting out @ 12 inches [Tags420]. A reading taken from the side, was almost 4x [aka 430+ umols] @ 8"?.

I use Phillips 10w 3000k.

ok but colour temperatures are relevant for healthy growth , but that still doesnt show the amount of light emitted by A bulb correct?
So why would lumens be useless as a measurement ?

ahhh. k i see now. umols/m^/sec , sorry forgot