I've been playing with a couple of COB layouts and love them! BUT I was intrigued by these new multiple chip, composite boards being designed by Horticultural Light Group, I believe the commercial lighting entity of Photon Labs/Northern Growlights.
The light WITH the heatsink in thinner than my tablet! Not sure on the weight, maybe 1 pound....
Hope the guys don't mind, I'm posting the specs as copied from thier website:
QB304 Quantum Boards
High efficiency boards designed for DIY projects. Can be powered from 10 to 150 watts. Ideal for use in grow tents or grow area with reflective walls and grow spaces with limited height. No TIM is required.
Specifications
Lm/W at Board** (40C)
101.8 250 25.45 200
103.1 350 35.70 192.5
105.1 500 52.55 184.3
106.9 700 74.83 176.8
109.9 1050 115.39 166.7
112.6 1400 157.64 158.7
* Voltage calculated using sample board. Voltage may be +/- 4% for boards in different batches.
** For more details refer to Calculator here. Use values LM561C, 3000K, 80 CRI, AZ Voltage Bin, S5 Flux bin. # of LED as 304x (number of boards). Change IF_Drive mA to see lm/W and flux for different power.
May require an Aluminum plate or heatsink if running 50+ watts. Heastink requirements depends on application and power.
Next up, My light in action!
The light WITH the heatsink in thinner than my tablet! Not sure on the weight, maybe 1 pound....
Hope the guys don't mind, I'm posting the specs as copied from thier website:
QB304 Quantum Boards
High efficiency boards designed for DIY projects. Can be powered from 10 to 150 watts. Ideal for use in grow tents or grow area with reflective walls and grow spaces with limited height. No TIM is required.
Specifications
- 304pcs Samsung 561C top bin Diodes
- Connectors rated 300V 9A
- Estimated LER 321.60 lm/W
- Estimated QER 4.86 µmol/J
- Dimensions 6.833" x 11.25
Lm/W at Board** (40C)
101.8 250 25.45 200
103.1 350 35.70 192.5
105.1 500 52.55 184.3
106.9 700 74.83 176.8
109.9 1050 115.39 166.7
112.6 1400 157.64 158.7
* Voltage calculated using sample board. Voltage may be +/- 4% for boards in different batches.
** For more details refer to Calculator here. Use values LM561C, 3000K, 80 CRI, AZ Voltage Bin, S5 Flux bin. # of LED as 304x (number of boards). Change IF_Drive mA to see lm/W and flux for different power.
May require an Aluminum plate or heatsink if running 50+ watts. Heastink requirements depends on application and power.
Next up, My light in action!