Lighting LED Terminology and thinking of purchasing another led.

Dr. Babnik

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Have done my research now. Now I understand more.

My panel has a 90 degree viewing angle, meaning the light beams are vertical.

Then I would think a panel with mixed 90 and 120 degree angles would result in better light conditions to the sides of the tent. Is that correctly understood?
 
Decision time.

There is kind of consensus that this one is good, right?

http://www.ebay.co.uk/itm/Mars-300-LED-Grow-Light-Lamp-True-140W-Veg-Bloom-Full-Spectrum-Panel-for-Plants/321684002218?_trksid=p2047675.c100005.m1851&_trkparms=aid=222007&algo=SIC.MBE&ao=1&asc=36561&meid=b7071c4716fb4464a89bb941cf6162ab&pid=100005&rk=4&rkt=6&mehot=pp&sd=171859279345

I already have a ViparSpectra 300W LED Grow Light Reflector 5W Full Spectrum with 90 degree viewing angle.

Specifications:
- Dimensions: 12.6x7.9x3 inches
- Item Weight: 5.6 lbs
- Replaces a 250 watt HPS/MH
- Use for all stages of plant growth
- Max Coverage at 24" Height 3x3ft
- Core Coverage at 24" Height 2x2ft
- Avg. Power Draw: 136watt
- (60pcs) High Intensity 5Watt Bridgelux/Epileds LED Chips
- LEDs Angle: 90°
- Input Voltage: AC100-240V
- Frequency: 50-60Hz
- Lifespan: 100,000 hours
 
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My panel has a 90 degree viewing angle, meaning the light beams are vertical.

Then I would think a panel with mixed 90 and 120 degree angles would result in better light conditions to the sides of the tent. Is that correctly understood?

No, this is the viewing angle:

beam_angle.gif
 
^ Or the higher you need to hang the light for the desired coverage.

I've got 4 of the Mars 300s from eBay still running. I can't speak for the leds but the case is sturdy, the fan is quiet, and the drivers keep going at 24/0 for over a year now. On their own they will cover about a 1.5'x1.5' space to flower under.
 
i think u shoudl go with the liht you have if ur happy with it or a mars

those lights all look the same anyway
 
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