Re: Halogen or tungsten light buld?
- From: "Pi" <peter@xxxxxxxxxxxxxxxxx>
- Date: Sun, 30 Oct 2005 19:42:40 -0000
Light is heat, so 50W of light is 50W of heat, more or less. Depend how much
of the infrared spectrum is produced by the lamp. By the way, they are
lamps, not bulbs. Bulbs grow int' ground, as a professor once told me!
If you are using a dichroic halogen lamp, the dichroic filter will push the
infrared part of the spectrum backwards compared with the heat output of a
halogen capsule lamp.
If the area is large, you might want to consider using an infrared heat
lamp. Much better. If you want light to help the seedlings grow, then you
need a higher colour temperature, so you probably need to use a metal halide
lamp or use lamps with a colour temperature of 6000 degrees Kelvin.
In short, depending on what you want to achieve, you may need to mix and
match light and heat sources.
Hope this helps.
"Rocket Ron" <ron@xxxxxxxxxx> wrote in message
news:bX89f.140776$G8.14360@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi I am thinking of building a small propagator to start off seeds in my
unheated greenhouse next year. Would I be better using a 50 watt halogen
bulb or a 60 watt ordinary tungsten bulb. What would give the most heat? Or
is there a cheaper method of producing the heat?
Thanks Ron
.
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- Halogen or tungsten light buld?
- From: Rocket Ron
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