keiksweat
- Posts
- 4,642
- Reactions
- 8,193
- Joined
- Jun 22, 2015
- Points
- 263
I've got the 3 watt reflector series,450.dont under stand why they stuck 5watts in the new ones eitherHey M like our discussion and thinking of purchasing 2 144 reflectors as side lighting as well as maybe 2 mars 700's for over head problem i see is there both 5 watt diodes ,, Can a person pick n build these units ?? i mean i do not want 5 watt diodes but 3 watt diodes instead from reading leds in past couple years i am 75 percent ready to give them a shot but not interested in 5 watt diodes not at all so i its possible to to custom make reflectors or mars 2 units i would be interested then
, but the LED grow lights with the larger diodes have some very critical drawbacks. The first issue is that of heat dissipation and density. As the diode size increases, so does the amount of heat that needs to be dissipated by the diode chip. Larger wattage diodes need larger heat sinks to dissipate the heat that they give off. This results in heavier and bulkier lights. Another critical design drawback of the larger diodes is that they can not be packed as densely as the 3 watt designed lights. When using 5 watt or 10 watt diodes, you must space the diodes further apart, again because of the problem of heat dissipation. The result is a less densely packed grow light that is heavier and bulkier.
The biggest drawback of the 5+ watt diodes is their price. Not only do they cost more overall, but they are also more expensive on a $/watt and $/ growing area covered basis. A quick analysis shows that it is not worth paying a premium to have larger diodes in LED grow lights. The added penetration is superfluous and unnecessary for indoor growers and it comes at a burdensome cost – increased price and less densely packed network of diodes.
Bigger is not always better. When it comes to the question of 3 watt vs 5 watt diodes for LED grow lights, the 3 watt diode is the smarter choice for any indoor growing project.