Desmond J
Active Member
This is the one and only time I'm gonna say anything to you, and I hope you can have the same consideration: I don't allow trolls in my life. Carry on.
LED grow light help please!
- Thread starter kenobi
- Start date
Airwalker16
Well-Known Member
How am I trolling you? Wtf? I simply gave you a reason as to why he should NOT use Pin sinks as you so blaintently shut down my thought to use a bar. You made me sound stupid for even mentioning it, when in this case it's a MUCH BETTER option.
BobCajun
Well-Known Member
Those pin heat sinks aren't that great really. They're actually designed to be used in a tilted position. They get little air flow when vertical, because the bottom, where the COB attaches, is solid, no air holes. If you compare the specs to those of the Mechatronix ones, which are sort of a spiral design, you'll see that they have lower thermal resistance than the pins. The pins are good for what they're designed for, just not for vertical applications. I really don't know why they're so popular. They are far from being the best option available.
Same with those finned heat sinks people used for a while, the kind you buy by the foot. They only really work well when they are vertical so that air flows upward between the fins, meaning the COBs would be shining sideways.
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Airwalker16
Well-Known Member
BobCajun
Well-Known Member
Yeah with fans they're fine. Could probably just use a flat sheet of aluminum if you have fans on it really. I just don't like idea of blowing heat around. Kind of like it to go straight up where it will do less harm.Once you add fans, they work wonders!View attachment 3717150
MrTwist1
Well-Known Member
For such a limited height I would go with the Samsung hard strips - they are awesome and they give off such a nice even diffuse light. Buy a few, run them fairly soft at 700mA and you can almost have the plants touching them without burning. Like this you can maximise your use of the space. good luck
Airwalker16
Well-Known Member
Also not a bad idea
Desmond J
Active Member
Code:
https://youtu.be/82jafMBY7hI?t=215BobCajun
Well-Known Member
"Products
MechaTronix LED pin fin cooler are produced by cold forging from highly thermal conductive aluminium AL1070
The combination of a cold forging process with the high thermal conductivity of 210W/mK leads to optimal cooling results of these high end LED coolers
The major advantage of LED pin fin coolers is seen under tilted positioning of spot and track lights
Under vertical position the thermal results are comparable with our star shaped led coolers, but once tilting the lighting fixture over an angle of more than 50 degrees these pin fin led heat sinks keep their optimal performance
The base plate can be modified in our production lines with mounting holes for the led engines and optics
Thermal interface pads can as well be pre-applied"
http://www.led-heatsink.com/LED_Pin_Fin_Heat_Sinks.phtml
shake&bake
Well-Known Member
Check out ngtled use one of the corn cob lights I'd say up to 100w and then train 3 or 4 plants around your light source. Basically a mini vertical grow