On 17/04/15 19:21, Julian Barnes wrote:
Hi guys,

Are these new LED-based lamps suitable for growing a certain tropical
plant in your attic? They're apparently much more efficient and produce
more lumins per Watt and less heat. But is less heat a drawback in this
particular application? Do the plants require heat as much as light?

Peace, people.

Jules.


Tropical plants - what ARE you like?

OK - seriously... I assume you mean orchids

Given that certain high lumen cultivation systems actually have alot of
problems getting rid of excess heat, I suspect a strong cool light is
actually better. The optimum temperature depends on the species, but I'd
say you're better off getting the lighting cool and right and
supplementing the heating *only when necessary* with tube heaters or
soil heaters.

The main concern would be giving the plants a useful spectrum -
fluorescent tubes are made specially for growing not sure if there are
LED lamps that are as well tuned?