Off the shelf retail store screw-in LED and CFL bulb comparisons

[HuffnPufferfish]

perhaps the smaller diodes have something else to consider; the edges (lets say where light shines horizontal) are coated differently with phosphor and seem to emit a more redish light, this MIGHT be beneficial to our 'spectumlimited' white bulbs
since more smaller diodes have a larger outside surface compared to single diode lights

but if i compare them 1 by 1 vertically, it seems the single gives out a slighty higher intensity, leading me to think that smaller have more advantages when placed closer to the plants

 

[John_Dough III]

Less diodes per watt should give greater penetration/light distance.
More diodes at the same wattage would cover a larger area but not have as much depth.

In a micro environment It probably doesn't make much difference.

The 10w bulbs blynx uses run at 0.4 w each diode.
The phillips 8.5 run at 0.7w each diode.

Theoretically the phillips bulb should work better.


I have noticed the smaller bulbs tend to get hotter. The 8.5 watt bulbs are much hotter than my 14.5 watters. The eco-smart bulbs seem to get the hottest.
Based on build alone... the walmart bulbs seem to be the highest quality which i find funny since they're shitty walmart bulbs lol.

I don't really have the facilities to do a side by side.

 

[HuffnPufferfish]

im thinking it does makes a difference, if you can lower your lights 1cm, that could be a 20% intensity gain, if your overal patern/coverage is good enough this would be a win win win, this would increase your "penetration" as the light can hit plants on a better angle

ill be modding my setup some more for betting cooling, as this can give another 25% increase in lumen, will check back end of the year

 

[blynx]

Here's the LED cab after two weeks of flowering.

C99 x Shire (SSSDH)

Day 14 Flower

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[Dropped Cat]

That's real good, is that a dish tub, how big is it I wonder.

 

[Navigator]

Looking mighty fine. I see many a bud site. & Love that cab! It's those sweet single door cabs... something about em.

 

[blynx]

That's real good, is that a dish tub, how big is it I wonder.

It is a Rubbermaid tub.

Dimensions are approx 13.5" L x 9.25" W x 6.25" H.

I've always guessed it's around 2.5-3gal of soil.

I had a 3gal container that still had the soil from a girl that recently came down so I decided to see how much would fit in the tub.

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Looks like the tub holds 3 gals of soil (including root ball).

 

[Dropped Cat]

It is a Rubbermaid tub.

Dimensions are approx 13.5" L x 9.25" W x 6.25" H.

I've always guessed it's around 2.5-3gal of soil.

I had a 3gal container that still had the soil from a girl that recently came down so I decided to see how much would fit in the tub.

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Looks like the tub holds 3 gals of soil (including root ball).

Thanks for that info, I was thinking around two gallons.

Real nice stuff you got going on here.

 

[Muleskinner]

That Cindy girl is looking nice and dark green for day 14!!

btw, your container is 3.38 gallons…..

http://www.sciencemadesimple.com/volume_conversion.php

 

[Dr. Fred]

That's pretty sweet

 

[blynx]

Here's the LED cab after three weeks of flowering.

C99 x Shire (SSSDH)

Day 21 Flower

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[blynx]

Here's the LED cab after four weeks of flowering.

C99 x Shire (SSSDH)

Day 28 Flower

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[Dropped Cat]

Nice, I'd hit that.

 

[DontTellMyWife]

Really great thread. Perhaps it's buried in the thread, but how many grows are you guys getting with the same bulbs?

 

[Gnz]

Really great thread. Perhaps it's buried in the thread, but how many grows are you guys getting with the same bulbs?

I don't think anyone growing with screw in bulbs is likely to have replaced them yet, I'd anticipate getting 2-3 years out of them. Loads of them have longer warranties than that now!

 

[tg77]

Is it feasible to use screw in led for a 2 x 2 tent, if so what would
you recommend?
bought tent, never grown before . all help gratefully recieved

 

[HuffnPufferfish]

ill replace them with better technology, easy as that

 

[Dropped Cat]

Is it feasible to use screw in led for a 2 x 2 tent, if so what would
you recommend?
bought tent, never grown before . all help gratefully recieved

Some wiring skills required, or buy some multi socket fixtures.

You could do it, I think 9 16W will be good. See post#340 in this thread:

https://www.icmag.com/ic/showpost.php?p=7444333&postcount=340


I use 12 10W in 3 square feet.

 

[PoweredByLove]

i made this for my 2.5'x2.5' box. there's an hps in the middle but you get the idea. i got most of the sockets online for less than a buck each. the rest at home depot for $1.25. the bublbs i source from wherevers cheapest. roughly 1.50-$2 each. not paying more than $2 for a fucking light bulb. i aim for minimum 800lumens(750) rating on the box cuz i know i can get at least 2x that when i take the domes off. i don't count on penetration more than 4-6" being any useful so i aim for total coverage vs intensity. object is to get enough light to cover the whole area at 4-6 inches above tops.

 

[angelgoob]

If you actively cool one of these sumbitches that would extend the life a lot.

Man they are getting way better, these a19 bulbs.

It's the floods I am interested in now.