Philips 70 watt "High Pressure Sodium" Bulb?

just saw these Philips high pressure sodium bulbs..they clame to be high pressure sodium...but they're only twenty dollars, and i read somewhere that these are actually "Low Pressure Sodium"..is that true? says its a "Philips 70 watt, C70S62/ALTO" and everywhere i look its labeled as a high pressure sodium bulb...

So confused....:wtf:

ouch...no replies?

C'mon, somebody!?

Looks like a high pressure sodium to me. I've gotten one for very cheap, around that price. Its just not as good, PAR wise, as more expensive ones.

but it still will work?

you need more than just a bulb, you would need a ballast for it to function and you could do alot better with a higher wattage light say a 150 or 250 or possibly larger depending on your grow space.

yea i know all that stuff, i just wanted to make sure i wasnt mistaking this for a Low pressure sodium bulb, they have that same bulb in a 250 just not where i was looking. Thanks

That part # indicates that it is a HPS lamp. Here's a bit on info on low pressure sodiums for ya.........
EERE Consumer's Guide: Low-Pressure Sodium Lighting

Have a good grow!:jointsmile:

You STILL need a ballast.

so...i would STILL need a ballast if i bought a really expensive bulb too...