HOW MANY PEOPLE USE CFL AND HOW MANY HPS OR BOTH?

[slowthestone]

For CFLs and flouros, you want higher k range like around 6000 for veg, cool blueish white. Then move down to like 3500 for flowering, warm reddish yellow.

Yikes racerx....

The only way a 3500 CFL or standard flouro would make it a night on here is if the one of the warmer CFLs took a dump.

Max 3000K for flowering. yea yea....sure you can flower with a cooler color...but why when warmer is better and costs the same? My flowering CFLs range tween 2400 - 2700K. Though I"m drooling for some of the newer 2100Ks that have been around since...not so long ago.

Veg'n with 6500K of course. Trying hard though to find a kik ass CFL in the 10-12K range.

redsoxian22....

Like kameo said...

That most certainly is not an HPS, nor a CFL.

The lamp number you provided...PHILLIPS F40T12, is standard nomenclature for bulbs/lamps.

F40 = 40 watts.
T12 = T12 (think of the T of fluorescent lamps as the V for motor engines.)

Anyway, it is also not a CFL. Which are 'compact' fluorescents and typically screw into a medium base as any standard bulb does.