CMH vs HPS Lamp Life

T.C. Bosby

Well-Known Member

• Apr 14, 2016

• #1

How long do CMH lamps last compared to HPS?

 

TheChemist77

Well-Known Member

• Apr 14, 2016

• #2

the 315 watt cmh agro bulb from phillips lasts over 3 years, 20,000hours before bulb change. wright now a bulb is around $90.00, but with it lasting 3 plus years its cheap in comparison to the many hps bulbs you would need in 3 years.. also the 315 watt bulb can yield you around 500 grams,,try getting that gpw with a hps...cmh=way better

 

T.C. Bosby

Well-Known Member

• Apr 14, 2016

• #3

Just ordered the Phantom CMH setup (ballast, light, reflector)! After shipping, $340.00. Pretty happy with that.

 

hyroot

Well-Known Member

• Apr 14, 2016

• #4

Cmh will last twice as long as hps. Cmh use a ceramic arc and hps uses an aluminum arc.

But it's better to replace when the spectral degrading starts to occur.

Cmh replacement about 18 months.

Hps replacement 6-9 months.

 

Last edited: Apr 14, 2016

hyroot

Well-Known Member

• Apr 14, 2016

• #5

T.C. Bosby said:

Just ordered the Phantom CMH setup (ballast, light, reflector)! After shipping, $340.00. Pretty happy with that.

Click to expand...

From where if you don't mind me asking. I paid $364.43 after everything and that was the best deal I could find on phantoms. If I can get it cheaper on the next one. That 25 dol can go to somewhere else

 

T.C. Bosby

Well-Known Member

• Apr 14, 2016

• #6

Total with shipping was $340.16, bought it at some site named Blue Earth Sustainable.

https://blueearthsustainable.com/gr...flector-ballast-and-bulb-kit-4200k-phr31504kt

 

N

Niblixdark

Well-Known Member

• Apr 14, 2016

• #7

Can you get them in higher wattage; I've never heard of this type of bulb and ballast before?

 

T.C. Bosby

Well-Known Member

• Apr 14, 2016

• #8

I've seen commercial units that run two 315W bulbs and a couple retail ones that run at 400W, but come from questionable manufacturers.