Best Price For HPS??

navyfighter04

navyfighter04

Active Member
So ive been shopping around for my new grow room ive been designing and was wondering what is a good price for a 600 W HPS light? I plan on buying 2 of them. Also what is their average coverage as far as square foot? My new grow room is big. 12'L x 11'W x 7' H. Its gonna be two seperate rooms split down the middle with a zipper door to seperate the 2 sides. I want one side for Veg and another for Flowering. Thanks
 
cobra28widow

cobra28widow

New Member
You should be able to find a 600 hps ballast only for about $75-$100... the last 1000w switchable ballast I bought was like $110 on ebay brand new.. no cord or bulb though.. But I would consider a parabolic reflector for that big of an area.. Good luck man..
 
Rancho Cucamonga

Rancho Cucamonga

Active Member
In that size of room you are going to need four 600/1000 watt bulbs to get acceptable watts/lumens per square foot. Maybe two 1,000s. Digilux and lumatek bulbs are the most high end affordable bulbs. Do a search and find best prices. 65-90.

Two rooms, I see. I would have two 400s or 600s for veg and two 600s for flower side. To save on electricity and get tighter nodes I use T5 lighting in early veg but starting with MH can speed up veg time. Make sure that split is light proof. I'd tape or secure flaps to whatever material you are using to split room at the zipper.

Here is one of my rooms. In the first pic is the right side of door shut, I use velcro. In middle of pic is edge of door where some light could escape or get in, note were the piece of velcro is on outside of door. Second pic is flap closed stopping any light leak or light invasion. Zippers, velcro and other means of securing doors, splits ect need to be light proofed well.

100_0518.jpg100_0519.jpg
 
navyfighter04

navyfighter04

Active Member
cobra28widow said:
You should be able to find a 600 hps ballast only for about $75-$100... the last 1000w switchable ballast I bought was like $110 on ebay brand new.. no cord or bulb though.. But I would consider a parabolic reflector for that big of an area.. Good luck man..
Click to expand...
thanks cobra. I was planning on spending about 150-200 for each HPS tube light. BTW is that your car in your avatar? I love mustangs. I have a 1968 that my grandfather gave me, but it needs a lot of work.
 
navyfighter04

navyfighter04

Active Member
Rancho Cucamonga said:
In that size of room you are going to need four 600/1000 watt bulbs to get acceptable watts/lumens per square foot. Maybe two 1,000s. Digilux and lumatek bulbs are the most high end affordable bulbs. Do a search and find best prices. 65-90.

Two rooms, I see. I would have two 400s or 600s for veg and two 600s for flower side. To save on electricity and get tighter nodes I use T5 lighting in early veg but starting with MH can speed up veg time. Make sure that split is light proof. I'd tape or secure flaps to whatever material you are using to split room at the zipper.

Here is one of my rooms. In the first pic is the right side of door shut, I use velcro. In middle of pic is edge of door where some light could escape or get in, note were the piece of velcro is on outside of door. Second pic is flap closed stopping any light leak or light invasion. Zippers, velcro and other means of securing doors, splits ect need to be light proofed well.

View attachment 2499134View attachment 2499135
Click to expand...
Thanks for the input man. I was thinking id need more than 2 lights. What if i used my floro's for veg and the hps or mh for flowering, Would that work???
 
Rancho Cucamonga

Rancho Cucamonga

Active Member
Spread on a 600 is 4x4, 1,000 5x5 depending on reflector.

Do the math. You can use watts or lumens to formulate but I use lumens even though neither is perfect. A 600 watt HPS should have about 90,000 true lumens. You take your room, 12x11=132 square feet. Say you only use two HPS 600 watts with a total of 180,000. You divide that 180,000 by the rooms square feet 132=1,363 lumens per square foot. That's bad. With four HPS 600s at 360,000 lumens thats 360,000 divided by 132=2727. A little better but well under range.
So for a split room. Make the veg the smaller half, say 11x4 and use the two MH 600s which give you about 150,000 lumens divided by 44(veg room square feet)=3409 lumens per square foot. Being each 600 can spread about only 4x4 you only want to use about 8 feet of the 11 wide, maybe use those extra 3 feetx4 for T5s or clones. Then for the flower half you have a 11x8 room and two HPS 1,000s would give you 310,000 lumens divided by 88(flower room square feet)=3,522 lumens per square foot. Acceptable but still under recommended.

Now this is not exact science but you can see using two 600s or even four 600s in this large of a room will not give you good lumens or watts per square foot. If you wish to yield the max a plant has to offer you need max watts/lumens.
Height is also an issue but being one can raise and lower lights it's not needed to calculate what you need for lighting.

Early veg:2,000 lumes per square foot
Veg:3,000 lumens per square foot
Flower:5,000 lumens per square foot
These are my minimums. I currently have 7-8,000 lumens per square foot in my flower, about 3,000 lumens per square foot veg plus additional T5 lighting for clones.

Just grab as much light as you can afford.
 
Rancho Cucamonga

Rancho Cucamonga

Active Member
navyfighter04 said:
Thanks for the input man. I was thinking id need more than 2 lights. What if i used my floro's for veg and the hps or mh for flowering, Would that work???
Click to expand...
Sounds like a plan. Grabbing four 600 or 1000s is a lot of cash right away. Use what you can afford. Without MH you will have slower growth but they will get there. If I had to choose I would definitely put more wattage into flower.
 
navyfighter04

navyfighter04

Active Member
Rancho Cucamonga said:
Spread on a 600 is 4x4, 1,000 5x5 depending on reflector.

Do the math. You can use watts or lumens to formulate but I use lumens even though neither is perfect. A 600 watt HPS should have about 90,000 true lumens. You take your room, 12x11=132 square feet. Say you only use two HPS 600 watts with a total of 180,000. You divide that 180,000 by the rooms square feet 132=1,363 lumens per square foot. That's bad. With four HPS 600s at 360,000 lumens thats 360,000 divided by 132=2727. A little better but well under range.
So for a split room. Make the veg the smaller half, say 11x4 and use the two MH 600s which give you about 150,000 lumens divided by 44(veg room square feet)=3409 lumens per square foot. Being each 600 can spread about only 4x4 you only want to use about 8 feet of the 11 wide, maybe use those extra 3 feetx4 for T5s or clones. Then for the flower half you have a 11x8 room and two HPS 1,000s would give you 310,000 lumens divided by 88(flower room square feet)=3,522 lumens per square foot. Acceptable but still under recommended.

Now this is not exact science but you can see using two 600s or even four 600s in this large of a room will not give you good lumens or watts per square foot. If you wish to yield the max a plant has to offer you need max watts/lumens.
Height is also an issue but being one can raise and lower lights it's not needed to calculate what you need for lighting.

Early veg:2,000 lumes per square foot
Veg:3,000 lumens per square foot
Flower:5,000 lumens per square foot
These are my minimums. I currently have 7-8,000 lumens per square foot in my flower, about 3,000 lumens per square foot veg plus additional T5 lighting for clones.

Just grab as much light as you can afford.
Click to expand...

That just answered all my questions. Thanks man. I really appreciate how helpful people on this site are to a noob like me. Much appreciated. Would give you rep if i could.
The room has a 3 foot walkway in it, so really the total grow area is 12' L x 8' W x 7' H.
 
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