Trying to find 6500k and 2700k CFL's?

k-town

Well-Known Member

• Mar 20, 2007

• #1

O.k. so I know I need to use 2 CFL's in my growroom, went to the store to find a couple and found cfl's fine and how many lumensthey were, but could not find out how to tell which were 2700k and 6500k. Will it be marked on the package as 2700k or 6500k or is there some other term or system for k's. How do I tell the K's a light is?

 

ILoveUMaryJane

Well-Known Member

• Mar 20, 2007

• #2

if it says warm, it's prob 2700ish, etc.

 

Pseudonym

Well-Known Member

• Mar 20, 2007

• #3

It will say on the package. There's usually a white box on the cartridge that lists the wattage, lumens, and K temp. If you already have the lights and you want to know the K temp you can buy a light meter, but it's probably not worth it.

 

MajoR_TokE

Well-Known Member

• Mar 20, 2007

• #4

Home Depot > BLUE

Home Depot > RED

 

k-town

Well-Known Member

• Mar 20, 2007

• #5

Hey how many lumens are those? And what's the price?

 

MajoR_TokE

Well-Known Member

• Mar 20, 2007

• #6

Philips - 27W Twister Compact Fluorescent Lamp Medium Base 6500K - 160184
Philips - 42W Twister Compact Fluorescent Lamp Medium Base 2700K - 139774

 

dursky

Well-Known Member

• Mar 20, 2007

• #7

I have the 42 watt...they are working good... are the 27 watt ones better???
Thanks

 

green_nobody

Well-Known Member

• Mar 20, 2007

• #8

dursky said:

I have the 42 watt...they are working good... are the 27 watt ones better???
Thanks

Click to expand...

you are not serious about this question or??

 

D

DoobsDay

Well-Known Member

• Mar 20, 2007

• #9

good question, yes the 27w produce more lumens per watt then the 42's

 

green_nobody

Well-Known Member

• Mar 20, 2007

• #10

in general the math for CFLs is 60-100lum/W, to generalise that a 27W will give more lumen's then a much stronger 42W CFL is, take the guess yourself...

(and if a 42W bulb should have less punch then a smaller 27W version i would shop for a different 42W one then to by a weak 27W instead)

 

D

DoobsDay

Well-Known Member

• Mar 20, 2007

• #11

well now wow u really pride yourself on how much you think u know, how bout u go do some looking around and compare the lumen outputs of 42's and 27's, on average the lower wattage cfls put out more lumens. lol i even seen this posted b4 on this exact site

 

MisoHi

Well-Known Member

• Mar 20, 2007

• #12

If you fail to find any info on the package or the bulb itself, then try the manufacturers website. I know that GE's website will give you all the info you need on the bulb. If all else fails, generally the 2700k bulbs give off a yellow/orange light and the 6500k ones give off a more white/blue light ... who'd a thunk.

 

CellZero

Active Member

• Mar 21, 2007

• #13

IF you have a walmart around you they sell 6500k (cool bulbs) in packs of 2 @ 1600 lumens each for 6.44. It will say something like "cool bulb" on the packagel. They also sell 3 packs of warm bulbs @1700 lumens each for like 7.50.