Switching LED lights the first week of grow, am I safe or too late?

Is it safe to switch the LED's from Mars Hydro to Optic 1 XL, one week after sprouting?

  • Yes

    Votes: 4 80.0%

  • No

    Votes: 1 20.0%
  • Total voters
    5
brewbeer

brewbeer

Well-Known Member
@DillonGrows if you look at the g/watt yield of your HPS and LED grows, they are almost the same. HPS - 300 grams / 400 Watts = 0.75 g/watt. LED - 210 grams / 290 Watts = 0.72 g/watt.

The HPS and your blurple LED probably have similar efficiencies.
 
Kingrow1

Kingrow1

Well-Known Member
DillonGrows said:
Yeah the 400 hps/mh setup was fun, but it became costly with the monthly electric (my electric bill became realistic again switching to LED's), the tent was always hot, so I had to have cooling/inline fans and then the ducting for the light and all that good stuff. I just really don't want to go back to that, it was a hassle for me personally.


Well everyone, after a good amount of searching I keep coming back the Optic 1 XL. Thank you all for the reassurance of switching from blurple type spectrum to the Optic XL, I didn't think it would affect them too much this early into the grow, but never hurts to get others opinions! Have a good one!! bongsmiliebongsmilie:grin::grin::grin:
Click to expand...
Heat is not that well understood, with reguards to hps (but also led) i would write that :-

*To place your thermometer in direct light is incorrect.

*To place your thermometer away from the light and canopy in a shaded place is correct.

When we want to read air temps, mainly hps seems hot but the air isnt all that hot.

I hope this helps with your leds also :-)
 
H

hawkems

Active Member
A joule of light creates both heat and light. The efficiency of the fixtire/bulb/diode is what determines the general ratio of heat:light.

(THE FLOWOWING are not accurate statistics or fact but rough estimates to make a point)

Say an hps is 40% heat : 60% photons. But a high efficiency led can give more like 20% heat : 80% photons. Plants like photons. That's pretty much why you go led. But lower grade leds like mars hydro, viparspectra, well most if not all 'burple' lights are like 30-35% heat : 65-70%. They are also marketed as a full spectrum light but.....like they arent? I don't want to sound like I'm straight bashing on companies and doing all that troll stuff. It just isn't where you should put your money.

If you aren't convinced to go decent mid power leds, consider CMH lights. They are more efficient than the burple leds and have different benefits than too end leds currently do.

And if not it really is just better to go with a cheaper hps light and spent the additional on cooling.

Different lights have different levels of emited radiant heat. Which is directly transferred and does no conduct thermal change in the atmosphere at the same rate.

Also 1 watt of hid lighting produces 3.4ish btu's of heat. So thats a good reference if you want to calculate if it's worth it to you. Sometime running a hotter light is a good thing in the winter.
 
Last edited:
Kingrow1

Kingrow1

Well-Known Member
hawkems said:
A joule of light creates both heat and light. The efficiency of the fixtire/bulb/diode is what determines the general ratio of heat:light.

(THE FLOWOWING are not accurate statistics or fact but rough estimates to make a point)

Say an hps is 40% heat : 60% photons. But a high efficiency led can give more like 20% heat : 80% photons. Plants like photons. That's pretty much why you go led. But lower grade leds like mars hydro, viparspectra, well most if not all 'burple' lights are like 30-35% heat : 65-70%. They are also marketed as a full spectrum light but.....like they arent? I don't want to sound like I'm straight bashing on companies and doing all that troll stuff. It just isn't where you should put your money.

If you aren't convinced to go decent mid power leds, consider CMH lights. They are more efficient than the burple leds and have different benefits than too end leds currently do.

And if not it really is just better to go with a cheaper hps light and spent the additional on cooling.

Different lights have different levels of emited radiant heat. Which is directly transferred and does no conduct thermal change in the atmosphere at the same rate.

Also 1 watt of hid lighting produces 3.4ish btu's of heat. So thats a good reference if you want to calculate if it's worth it to you. Sometime running a hotter light is a good thing in the winter.
Click to expand...
You probably dont know me yet but we have a long road ahead with the whole led science light heat stuff :-)
 
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