Disciple

Well i was shopping at the local hydro shop today and found this book with all the lumens and specs and the average lifetime of the lamps/bulbs .so i figured what a way to help u ppl so here ya go as listed.for all u tech heads around here who just got to have it all.

-./V-Disciples Replacement Bulb Chart and basic HID Specs-V\.-

HID:is the group or class MH HPS are considered Mercury Vapor is also a HID but WORTHLESS for what we are after (NOOB NOTE)

NOTE: THESE HID LAMP/BULB SPECS ARE FROM HYDROFARMS catalog/Grow Guide:

* I DONT CARE BOUT RATED HOURS OF LIFE I CHANGE BULBS EVERY 6Months to a yr *

(k) = 1000 for those of u who dont know

And all bulbs Labeled w/EYE are made by Hortilux

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Reflector size taken on these specs are 8 1/2(H) X 19 5/8(W) x 20 1/4(L) inch's

250w lamp can cover 3 x 3 to 5 x 5 ft area hung 1-3 ft above canopy of plants

400w lamp can cover 5 x 5 to 8 x 8 ft area hung 3-5 ft above canopy of plants

1000w lamp can cover 8 x 8 to 12 x 12 area hung 5-7 ft above canopy of plants

1st distance is best over all light 2nd distance is decent light so ne thing outside of the first square distance will not gow as big and as good as the plants on the inner 5 x 5ft area of say a 400w HPS
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Hortilux Sodium Bulbs:

400w EYE bulb = 55k lumens rated hours of life 24k hours
430w EYE bulb = 55k lumens rated hours of life 16k hours
600w EYE bulb = 85k lumens rated hours of life 18k hours
1000w EYE bulb = 145k lumens rated hours of life 24k hours

Conversion Bulbs HPSodium to MHalide:

250w MH conv. bulb = 21k lumens rated hours of life 10k hours
400w MH conv. bulb = 40k lumens rated hours of life 20k hours
1000w MH conv. bulb = 118k lumens rated hours of life 12k hours

Conversion MHalide to HPSodium:

150w HPS conv. EYE bulb = 15k lumens rated hours of life 24k hours
220w HPS conv. EYE bulb = 25k lumens rated hours of life 24k hours
360w HPS conv. EYE bulb = 45k lumens rated hours of life 24k hours
940w HPS conv. EYE bulb = 130k lumens rated hours of life 24k hours

Metal Halide Bulbs:

175w Universal bulb = 13k lumens rated hours of life 10k hours
175w Horiz. (High Output) bulb = 15k lumens rated hours of life 10k hours
175w Daylight Universal 5500 kelvin =12k lumens rated hours of life 7k hours

250w Horiz. (High Output) bulb = 23k lumens rated hours of life 10k hours
250w Universal bulb = 21k lumens rated hours of life 10k hours
250w Daylight (5500 kelvin) bulb = 19k lumens rated hours of life 7k hours
250w Daylight (6500 kelvin) EYE bulb = 18k lumens rated hours of life 9k hours

400w Daylight (5500 kelvin) bulb = 33k lumens rated hours of life 15k hours
400w Daylight (6500 kelvin) EYE bulb = 30k lumens rated hours of life 9k hours
400w Universal bulb = 36k lumens rated hours of life 20k hours
400w Vertical High Output bulb = 40k lumens rated hours of life 20k hours
400w Horizonal High Output bulb = 40k lumens rated hours of life 20k hours
400w Horizonal High Output EYE bulb = 40k lumens rated hours of life 20k hours

1000w Universal bulb = 110k lumens rated hours of life 12k hours
1000w Universal EYE bulb = 115k lumens rated hours of life 12k hours
1000w Universal 5600 kelvin bulb = 110k lumens rated hours of life 12k hours
1000w Universal 5600 kelvin EYE bulb = 115k lumens rated hours of life 12k hours
1000w High Output Vertical bulb = 115k lumens rated hours of life 12k hours
1000w High Output Vertical EYE bulb = 115k lumens rated hours of life 12k hours
1000w Daylight 5500 Kelvin bulb = 80k lumens rated hours of life 9k hours
1000w Horizonal High Output bulb = 115 lumens rated hours of life 12 hours
1000w Horzontal High Output 5600 Kelvin bulb = 115k lumens rated hours of life 12k hours
1000w Standard bulb = 133k lumens rated hours of life 9k hours

High Pressure Sodium:

150w HPS bulb = 16k lumens rated hours of life 24k hours
250w HPS bulb = 28.5k lumens rated hours of life 24k hours
400w HPS bulb = 50k lumens rated hours of life 24k hours
600w HPS bulb = 90k lumens rated hours of life 18k hours
1000w HPS bulb = 140k lumens rated hours of life 24k hours

Super Agro Sun HPS bulbs:

160w HPS bulb = 17k lumens rated hours of life 16k hours
270w HPS bulb = 29k lumens rated hours of life 16k hours
430w HPS(Son Agro)bulb = 53k lumens rated hours of life 16k hours

Agro Sun Gold Metal Halide bulbs:

1000w bulb = 118k lumens rated hours of life 12k hours
400w bulb = 40k lumens rated hours of life 20k hours
250w bulb = 20k lumens rated hours of life 10k hours

Agrosun Red High Pressure Sodium bulbs:

430w bulb 58k lumens rated hours of life 15k hours
600w bulb 90k lumens rated hours of life 10k hours

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To determine how many lumens per square foot you have: Find out the square footage of your space. Width x Depth = Square feet. Divide the lumens available by your square footage. This will give you lumens per square foot. Example: Say your space is 3 feet deep by 4 feet wide, 12 square feet. The total lumens available from your light(s) is 45000 lumens. 45000/12 = 3750 lumens per square foot.

Now for the big question. How much light do I need? Technology has advanced so much in the last 15 years that we are constantly refining the process and updating what we know works best for growing. Current theory holds that the minimum amount of lighting needed to sustain growth is around 2000 lumens per square foot. Mid range is around 5000 lumens per square foot. Optimal is 7000-7500, or higher, lumens per square foot.

What if you want to determine how much light you need in watts? The general rule of thumb for providing light for an area is a minimum of 30 watts per square foot. 50 watts per square foot is optimal. You can determine the proper lighting for your area by using this formula: 30 watts (or 50) x ?(your) square feet. Example: You have an area of 10 sq. ft. - 30w x 10 s.f. = 300watts/sq.ft minimum or 50 watts x 10 s.f. = 500 watts/sq. ft. (optimal). Also, remember that fluorescent's are weaker and emit less light than an HID. This means you will need 5 times the amount of wattage to equal the output of an HID. So, 30 watts of HID would equal 150 watts of fluorescent's. This is why it is advised to provide a minimum of 30 watts per square foot for HID lights and a minimum of 150 watts per square foot for fluorescent's

gatorgrower

these sq footage shown on this chart is to large for for growing mj.... for a 250w bulb the max sq footage woudl be approx 8 sq ft using 30w of light per sq foot, 400w 13sq feet and 1000w 33 sq ft....

this link to the a thread in the library has lots of great info on light specs

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Peace & Cool Runnings

my dp blueberry results

my orange bud grow

Disciple

Facts Stated above are from the hydrofarm catalog i got from HERE this stores catalog call toll free and ask for the catalog (800) 833-6868 i just went by what the catalog said but i doubt they would lie to us. u probally get more from your light if lowered and set to the specs u listed which is what i would do 6 - 8 inches from the top of ladies to get more lumens or watts (psf)(but less area of cover)if heat allows me .everyone has thier own opinons but the staff at the hydro shop said they were accurate and written by hydrofarms .cuz they are a offical hydrofarm distributor and every thing in the store comes through the hydrofarm co and to the shop. so ill take thier word for it.

and alot of these specs on the light coverage depends on reflector cuz believe it or not alot of light can be reflected different by the change of a hood from even to not so even distribution do your research before u tell someone they are wrong

Disciple

I agree with u GG on the 30watts (psf) but i do believe those numbers can work just not as good of results will be found outside 13 sq/ft and with the light closer to the plants but we are shooting for 30watts (psf) i agree with u on that but someone whos not got much money w/a lil extra space may use it if they couldnt afford a 2nd HID and wanted to sacrifice Light for more plants
myself i wouldnt do it but who knows until seen done im sure someone will let us know maybe a bagseed grower or someone with freebies from an previous order of seeds cuz i know i aint w/mine i paid for not knockin u bagseed growers or ne freebies just sayn dont waste your money on trail and error s#it

and whats w/that itty bitty bulb chart u tossed in that link GG my list has every light known just about and thats what bulbs most hydroponic sites/stores carry ne ways for replacements ne ways not tryn to ruffle ne ones feathers just stating my opinon