What's new
  • As of today ICMag has his own Discord server. In this Discord server you can chat, talk with eachother, listen to music, share stories and pictures...and much more. Join now and let's grow together! Join ICMag Discord here! More details in this thread here: here.

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

Tombsy

New member
I can build this light for $150 CDN. A similar cob light would cost me $400+. The cobs are cheap, its the heatsinks, drivers and shipping/exchange that kill me.
 

n_d_ledz

Member
Day 1 and Day 15 under 80w led panel.

Only complaint is lack of stretch, lol. But they do promote a thick canopy with little effort. Kept the lights 18" above during the first 10 days, didnt seem to matter much. Dropped back down to 12" last night, will be at 6" by weekend. :)
 

Attachments

  • 432.jpg
    432.jpg
    59.6 KB · Views: 27
  • IMG_20170520_193858-1.jpg
    IMG_20170520_193858-1.jpg
    67.1 KB · Views: 26

argo430

Member
Veteran
Here it is still steaming off the pile. my vertically adjustable 3 base led holder two gang outlet box.

Presenting The Ghetto-Box power center

attachment.php


box 1.25
cover plate .99
cord clamp .60
computer cord .25 surplus store
14 awg teflon aircraft wire surplus .50
3 cleat socket 9.00
3 10 watt bulbs 3.75
2 eye hooks 2.00
two outlets 2.50

total
21 bucks for 30 watts
 

Attachments

  • ghetto box power center.jpg
    ghetto box power center.jpg
    60.7 KB · Views: 32
  • ugly but functional.jpg
    ugly but functional.jpg
    70.1 KB · Views: 32
  • plugins all full alredy.jpg
    plugins all full alredy.jpg
    70.7 KB · Views: 28

frica

Member
Here it is still steaming off the pile. my vertically adjustable 3 base led holder two gang outlet box.

Presenting The Ghetto-Box power center

View Image

box 1.25
cover plate .99
cord clamp .60
computer cord .25 surplus store
14 awg teflon aircraft wire surplus .50
3 cleat socket 9.00
3 10 watt bulbs 3.75
2 eye hooks 2.00
two outlets 2.50

total
21 bucks for 30 watts

Looks cool if not a little overengineered.

Any particular reason you didn't screw those cleat sockets into a piece of wood?
 

earthwyrms

Active member
ALSO, real cheap, 7 dollar 50 W full spectrum LED but it needs a US to EU converter because it's 220V driver on chip.

http://www.ebay.com/itm/50W-170-265...r-380NM-840NM-Full-Spectrum-LED-/262703085255

$6.65

if you don't have or find a good general converter/transformer this 100W one is 10 dollars (the 50w ones are cheaper but it's right at the line and so sine i don't understand the nuance there, this ones 100W)

http://www.ebay.com/itm/100W-Power-...V-240V-Up-Down-Volt-Transformer-/231169110709

$9.99

so that would be $16.64 for 50W which is pretty good.

supplementing or visa versa, with those lights and/or cree 100W(18W) 5000K could be great.
if heatsink srews are unavailable, mixing atomized copper powder with jb weld in the right ratio, like 1:1 is said to be a good LED heatsink adhesive. i did it but i didn't get the exact measurements, beause i alsorolled in some arctic silver with copper and heatsink silione adhesive which failed and gummeup on me quick, then i redisolved it in paint thiner, decanted and mixed with the jb weld and copper and just a bit of cetone to get it gummy like cake batter, and squeezed it out in lines on the heatsink and quickly (it turns out i didn't need to rush) set all the LEDs
(set off the heatsink in waiting ar the approximate spaings in rows, with the + - in the same directions)
on and left two nice big textbooks on them for 2.5 days
 

Attachments

  • s-l1600 1.jpg
    s-l1600 1.jpg
    46.4 KB · Views: 32
  • s-l1600 2.jpg
    s-l1600 2.jpg
    62.3 KB · Views: 34
  • s-l1600.jpg
    s-l1600.jpg
    51.3 KB · Views: 25
Last edited:

argo430

Member
Veteran
Looks cool if not a little overengineered.

Any particular reason you didn't screw those cleat sockets into a piece of wood?
You cant ground wood, water with no safety return = potentially dangerous just like exposed barbs and terminals there is a lot i want to fix still but i like it
 

ReikoX

Knight of the BlackSvn
ALSO, real cheap, 7 dollar 50 W full spectrum LED but it needs a US to EU converter because it's 220V driver on chip.

http://www.ebay.com/itm/50W-170-265...r-380NM-840NM-Full-Spectrum-LED-/262703085255

$6.65

if you don't have or find a good general converter/transformer this 100W one is 10 dollars (the 50w ones are cheaper but it's right at the line and so sine i don't understand the nuance there, this ones 100W)

http://www.ebay.com/itm/100W-Power-...V-240V-Up-Down-Volt-Transformer-/231169110709

$9.99

so that would be $16.64 for 50W which is pretty good.

supplementing or visa versa, with those lights and/or osram 100W(18W) 5000K could be great.
if heatsink srews are unavailable, mixing atomized copper powder with jb weld in the right ratio, like 1:1 is said to be a good LED heatsink adhesive. i did it but i didn't get the exact measurements, beause i alsorolled in some arctic silver with copper and heatsink silione adhesive which failed and gummeup on me quick, then i redisolved it in paint thiner, decanted and mixed with the jb weld and copper and just a bit of cetone to get it gummy like cake batter, and squeezed it out in lines on the heatsink and quickly (it turns out i didn't need to rush) set all the LEDs
(set off the heatsink in waiting ar the approximate spaings in rows, with the + - in the same directions)
on and left two nice big textbooks on them for 2.5 days

i am real tired and my stomachs hurting and i had too much coffee before (it usually does this to me) and i can't think straight and i am not sure how i got to posting about DIY COBs in the off the shelf forum but here it is. facepalm

Those are pretty cool with the driver built in like that. Shame it is 220V, but still pretty cool. They are technically OTS LEDs, not too far off topic IMO.
 
Those are pretty cool with the driver built in like that. Shame it is 220V, but still pretty cool. They are technically OTS LEDs, not too far off topic IMO.

I actually have the 110 versions ordered, in 4 color temps. I can't wait to measure their actual pull from the wall.
 
Your light boards

Your light boards

Upgraded my setup today by getting rid of the chinese ufo in the top vegging section as its coverage was very poor. Replaced it with another rack of 8.5w 806 lumen led bulbs, using 12 this time for a nice even spread and a total wattage of 102w or 24w square foot.

I will maybe add a small seedling section in some of the empty space on the filter side of my growdrobe with a single bulb in it to keep electricity costs down for the first 3 weeks or so before putting them in the veg section.

Some pics are below, the bottom section has some plants which have just hit week 6 flower and have 3 or 4 weeks left. Maybe a little longer for the one on the right is it started flowering quite a bit later than the other two.[URL=https://www.icmag.com/ic/picture.php?albumid=73156&pictureid=1743764&thumb=1]View Image[/url] [URL=https://www.icmag.com/ic/picture.php?albumid=73156&pictureid=1743765&thumb=1]View Image[/url] [URL=https://www.icmag.com/ic/picture.php?albumid=73156&pictureid=1743766&thumb=1]View Image[/url] [URL=https://www.icmag.com/ic/picture.php?albumid=73156&pictureid=1743759&thumb=1]View Image[/url]

I was curious if i could get some insight or a link on how to follow that lighting board set-up?Honestly id like to put these brothers grimm into flower soon using metal halide and these leds.
 

Attachments

  • 0527170943.jpg
    0527170943.jpg
    77 KB · Views: 25
  • 0527170943b.jpg
    0527170943b.jpg
    100.4 KB · Views: 23
  • 0527170943a.jpg
    0527170943a.jpg
    82.4 KB · Views: 22
  • 0527170943c.jpg
    0527170943c.jpg
    74.7 KB · Views: 36
  • 0527170944.jpg
    0527170944.jpg
    74.9 KB · Views: 34
Top