357 Magnum Plus LED questions

[Mr Celsius]

I was looking at a Magnum Plus LED and was reading reviews claiming that it can replace a 1000w. I find this hard to believe, considering that every other light of this wattage can't seem to do it. I've heard of some side by side trials with it but can't seem to find any... anybody got a link or information?

 

[Phaeton]

A pair of 357 Magnum Plus growlights are used in the veg room

All The companies use a different method to measure the beam angle. I split the difference from where it visible gets darker on the bright side and where it visible shows up from the outside.

My HydroGrowLED 336X-Pro puts out a measured 56 degrees against an advertised 70, these Magnums put out 8 degrees against an advertised 90.

That is really tight, the footprint is almost identical as the size of the unit itself.

My experience with LED budding shows the breakpoint where extra light quits helping at 850 umol, how many photons per millisecond per square millimeter.
It is used for reference, the magnums are giving me 1300 umol at 18" in a 2' X 3' area. Both are angled in and this is where the beams cross, the area is too small for realistic growing of MJ.

The intensity equals a 1000 watt discharge bulb only in that tiny area, not an area large enough for the plant to grow.

The HGL with 448 driven watts and 60 degree spread is what is used for budding, actually, five of them in a circle are used for budding. These five replaced nine 400 watt discharge lights, a mix of HPS, CMH, and HID.

2240 watts replaced 3600 watts, that is over 1/3 savings for equal growth.

Some pictures of the magnum setup is on page 7 of "HGLTech....and UV surround" thread in growroom lighting.

 

[Phaeton]

Bored and like to play with lighting.

The Magnum's have 30% blue, this lets the light be much brighter. Blue light does not bleach the leaves like red does. Balancing the red/blue ratio allows much more intensity without damage.

The tiny footprint of the magnum's is being used on a tiny veg table.

In this small area the light level is over double that put out by 800 watts of CMH. The magnum's really shine at vegging small plants but are useless when the plant outgrows the footprint.

In the budroom the wider beam of the HGL's (10% blue) is adequate to 40", enough to reach an entire budding plant. Yields have shown less blue light is needed for bud versus veg so the wider red beam of the lower intensity HGL is more efficiently used.

 

[FreedomGrower]

I would say the magnum+ is equiv to somewhere between a 400w-600w hps. They use the same bridgelux leds the Chinese use ... not much more efficient than hps
That being said there is no reason to go with there product over a Chinese alternative besides the warranty. The Chinese units might even have better spread ... note you may have to contact the manufacture / pay a few cents more more 660nm red to be added.

Nova
apollo
HGL Chinese version

You might want to check out the Taiwan osram fixtures. It looks like this one might be as good as a 400w hps two or 3 would cover a 4x4 perfect.

 

[Herbcraft]

What an eye opener, FreedomGrower. I would not have known about the small footprint and chinese diodes if it wasn't for you. I've been researching/shopping for the perfect LED lights to cover a 20x10 area. I have a few questions which I think you'd be able to answer regarding LED light panels.

Hydrogrow LED 336X Pro - Are these quality made panels? I've heard nothing but negative things from people who've dealt with "Cammie" and "LEDGirl", the representative from Hydrogrow. Aside from customer service, how do these panels stack up to it's competitors?

AdvancedLED Diamond Series 800W - These use USA made Bridgelux diodes and Diamond built lens built into each diode. I've read positive reviews on these but would like some more light shed on these panels. No pun intended.

Any other LED panels you would suggest?