Lights - Growroom Lighting - International Cannagraphic Magazine Forums

toofat · 04-11-2005, 04:32 AM

How often should you change your grow lights?

plyinindirt · 04-11-2005, 04:42 AM

your going to get alot of opions on that, I cant MH bulb every 8-9 months,
and my HPS every year, now alot of people will say change more often, but i've got a buddy with a fuck it attitude, and has had the same hps bulb for 4-5 years, and his plants look good.

zeppelindood · 04-11-2005, 04:58 AM

I change my 400 watters every grow... (3-4 months)

toofat · 04-12-2005, 07:48 PM

Anyone else have any input?

badmf · 04-13-2005, 04:13 AM

without a meter its only a guess at best! suggestion; buy a meter or at the very least use a cameras lumen meter, when the bulbs are new to compare loss over time. After 15% loss change should be soon. PAR meters are availible (PAR measures plant usable light, compared to lumens which is total light produced) and are around 150 usd or so. Useful to gauge reflective sheeting angles light areas and weak spots.

04-11-2005, 04:32 AM	#1
toofat Member Join Date: Jan 2004 Posts: 862	Lights How often should you change your grow lights? __________________ “Being happy doesn't mean everything is perfect. It means you have decided to see beyond the imperfections. " EVERYTHING I POST IS FOR ENTERTAINMENT PURPOSES ONLY. SO, I GUESS YOU COULD SAY THAT I AM A BIG LIAR.
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04-11-2005, 04:42 AM	#2
plyinindirt Member Join Date: Oct 2004 Posts: 49	your going to get alot of opions on that, I cant MH bulb every 8-9 months, and my HPS every year, now alot of people will say change more often, but i've got a buddy with a fuck it attitude, and has had the same hps bulb for 4-5 years, and his plants look good. __________________ if you don't like my fire, don't come around.
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04-11-2005, 04:58 AM	#3
zeppelindood Captain Expando Join Date: Mar 2004 Location: In The Light Posts: 5,080	I change my 400 watters every grow... (3-4 months) __________________ "Look, the people you are after are the people you depend on. We cook your meals, we haul your trash, we connect your calls, we drive your ambulances. We guard you while you sleep. Do not... fuck with us."
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04-12-2005, 07:48 PM	#4
toofat Member Join Date: Jan 2004 Posts: 862	Anyone else have any input? __________________ “Being happy doesn't mean everything is perfect. It means you have decided to see beyond the imperfections. " EVERYTHING I POST IS FOR ENTERTAINMENT PURPOSES ONLY. SO, I GUESS YOU COULD SAY THAT I AM A BIG LIAR.
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04-13-2005, 04:13 AM	#5
badmf Serving great bud since 65'! Join Date: Oct 2004 Location: Surface of a strange planet Posts: 908	without a meter its only a guess at best! suggestion; buy a meter or at the very least use a cameras lumen meter, when the bulbs are new to compare loss over time. After 15% loss change should be soon. PAR meters are availible (PAR measures plant usable light, compared to lumens which is total light produced) and are around 150 usd or so. Useful to gauge reflective sheeting angles light areas and weak spots. __________________ What's My Name!
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