wheat berry
New Member
Assuming the heat sink design is the limiting factor for a matrix of LEDs means you can only dissipate so many watts of heat per square inch of heat sink.
Earlier in this posts I mentioned that 3 watt LEDs create more heat because they are less efficient than 1 watt LEDs. And since 1 watt LEDs are about 33% more efficient than 3 watt LEDs you can mount more 1 watt LEDs per square inch than 3 watt LEDs for a given heat sink. And the higher density 1 watt LED mounting translates into stronger light density per sq inch from the plant light!
The 1w Diodes Still Have Their Place
We just learned that the high-output 3w diodes have more penetrating power. This is really important when dealing with taller plants (over three feet tall). However, for shorter grows, a 1w diode grow light will do just fine. In fact, in some cases it may be preferable.
As is usually the case in real life, there is no clear winner. 1-watt diodes are more efficient and 3-watt diodes penetrate deeper (don’t touch 3 watt 3-chip diodes).
If you want to play it safe go with a light made up of 3-watt diodes. Your plant will thank you for it.
if the heat sink is a limiting factor why not build a water cooled heat sink,even running water through at room temps still should remove a lot of heat. at room temp there should not be any condensation to cause a problem. a company should be able to build a heat sink that could run cold water through.
anyways a better heat sink could lead to a better light. any light makers have any thoughts on this?
sure would increase the lifetime of the led lights and i can't believe it would add much to the production cost. i,ve though of retro fitting a copper coil through a heat sink run at room temp by gravity[ 2 res system ] or a pump a large res of cooling water and i wouldn't need a chiller i'm thinking.
Earlier in this posts I mentioned that 3 watt LEDs create more heat because they are less efficient than 1 watt LEDs. And since 1 watt LEDs are about 33% more efficient than 3 watt LEDs you can mount more 1 watt LEDs per square inch than 3 watt LEDs for a given heat sink. And the higher density 1 watt LED mounting translates into stronger light density per sq inch from the plant light!
The 1w Diodes Still Have Their Place
We just learned that the high-output 3w diodes have more penetrating power. This is really important when dealing with taller plants (over three feet tall). However, for shorter grows, a 1w diode grow light will do just fine. In fact, in some cases it may be preferable.
As is usually the case in real life, there is no clear winner. 1-watt diodes are more efficient and 3-watt diodes penetrate deeper (don’t touch 3 watt 3-chip diodes).
If you want to play it safe go with a light made up of 3-watt diodes. Your plant will thank you for it.
if the heat sink is a limiting factor why not build a water cooled heat sink,even running water through at room temps still should remove a lot of heat. at room temp there should not be any condensation to cause a problem. a company should be able to build a heat sink that could run cold water through.
anyways a better heat sink could lead to a better light. any light makers have any thoughts on this?
sure would increase the lifetime of the led lights and i can't believe it would add much to the production cost. i,ve though of retro fitting a copper coil through a heat sink run at room temp by gravity[ 2 res system ] or a pump a large res of cooling water and i wouldn't need a chiller i'm thinking.