Indoor upgraded with a DR 240x240 (8"x8") with 2x 300w LED but need advice.

[mattinuk3]

the 240 blackstars are rated for 2x3 foot but i find they work best for 2 x 2.5 because they're more like laser beams and don't spread. My 500 watt is rated for 4 x 3 but I don't go over more than 10 ft ^2 with it.

Also Muddy, wattage is a relative term. 50 watts of incandescent is different from 50 watts of hps is different from 50 watts of cfl is different from 50 watts of LED. A more accurate measure is lumens per square foot, or even better yet is PAR.

Lumens is a way to quantify light at a given distance, but it measures all light, even greens and yellows which the plant doesn't use.

PAR stands for Photosynthetic Active Radiation, and only measures the lumens from the wavelengths of light that are absorbed by the plant.

 

[mattinuk3]

Nelson, figure out your lumen output. A good measure is 3000-5000 lumens per square foot with HPS and CFL. With LED you can go as low as 1000-2000 lumens per square foot because the LED only shoots out wavelengths that the plant absorbs. Remember that HPS has only about 30% usable wavelength with 70% being greens and yellows. I would imagine that CFL has more usable spectrum than HPS so you could also get away with less lumens per square foot.

 

[automazarman]

so if i do understand with 5 FERO 360 4G LED Grow Light i should cover all the area?

 

[Muddy]

When dealing with new, uninitiated growers I find the watts per square foot method to be easier to understand than getting into discussions of lumens and PAR. Of course it's not the most accurate method of measurement but close enough, especially for LEDs and HPS.

the 240 blackstars are rated for 2x3 foot but i find they work best for 2 x 2.5 because they're more like laser beams and don't spread. My 500 watt is rated for 4 x 3 but I don't go over more than 10 ft ^2 with it.

Also Muddy, wattage is a relative term. 50 watts of incandescent is different from 50 watts of hps is different from 50 watts of cfl is different from 50 watts of LED. A more accurate measure is lumens per square foot, or even better yet is PAR.

Lumens is a way to quantify light at a given distance, but it measures all light, even greens and yellows which the plant doesn't use.

PAR stands for Photosynthetic Active Radiation, and only measures the lumens from the wavelengths of light that are absorbed by the plant.

 

[Muddy]

Probably not. That's 1,800 watts and you'll need at least 3,200 watts of LED to effectively cover that whole 64 sq. ft. area. What is the core penetration area of those lights?

so if i do understand with 5 FERO 360 4G LED Grow Light i should cover all the area?

 

[automazarman]

i just switch my light for this one please someone makes me understand ...

300W LED Grow Light Panel Specifications:

Replaces standard 1100W-1400W HPS/HID lights

Coverage: Each light covers 15-20 square meters of growing space (when set 1.2-1.5 meters away from plant)

Lifetime = 50,000+ hours

LED Grow Lights Outlet Exclusive: We’ll customize your light with any color ratio for a low, one-time fee—$100—unlimited quantities!

Use only the exact color spectrum you need for photosynthesis

Built-in thermo-sensitive devices shut down power supply to prevent over-heating

Low heat emission eliminates need for ducting & heat exhaust fans

No set-up or installation!...Plug-N-Play grow light

Eco-friendly: no harmful substances found in HPS/HID & MH lights

Certificate: CE& RoHS

Lumens 11000-15000 Lm
FAQ:



What is RB81, RBO711?

RB81and RBO711 is lights color ratio, RB81 stands for Red LED Bulb: Blue Bulb is 8:1, RBO stands for Red:Blue:Orange is 7:1:1.

What is different between 660 and 630?

Both of LED bulbs with 660nm and 630nm wavelength give red color, but LED 660nm bulb shows brighter than 630, also it is more expensive than 630nm .

Is 630 nm LED still available?

Except big orders with 630nm requested, we did not produce 630nm for our standard products.



Voltage AC110V/220V
LED Qty 288 PCS
Lighting Area 100 sqM
Input Current 2.25 – 2.5A
Red LED 660nm
Blue LED 460nm/615nm(orange)
Dimensions 18.5 x 12 x 3.5 in.(48 x 31 x 8.8 cm )
Housing Material White
Packing 23 x 17 x 7 in (59 x43 x18 cm)/ pcs.
Net Weight 17.6 lbs. (8kg)/ pc.
Gross Weight 19.5 lbs. (8.8 kg)/ pcs
LED Ratio Red: Blue = 8:1 or Red: Blue: Orange=7:1:1, Call for Customizing Raito



I BOTH 5 OF THEM AND WONDER IF IT WILL COVER MY 64 SQ FOOT CAUSE IM GOING CRAZY