Graphene coated LED and OLED - the future?

[Hadez411]

I just dissected a Philips 7W filament LED bulb that produces 800 lumens with the frosted glass bulb on. About 114lm/W for a cheap, off the shelf bulb that is 4000k or 5000k color. From what I read, graphene coated LED filaments are a thing and they are efficient. Not sure if this one is, but the value to efficiency was worth noting. Probably better now that it runs with no glass bulb.

Does anyone know of any OLED components or OLED lights and their efficiencies? I'm reading that it's all the rage for TVs and phones, but not yet for horticulture and they keep stating the improved efficiency but I can't find any lumens per watt numbers on a white full spectrum light.

 

[OneHitDone]

I just dissected a Philips 7W filament LED bulb that produces 800 lumens with the frosted glass bulb on. About 114lm/W for a cheap, off the shelf bulb that is 4000k or 5000k color. From what I read, graphene coated LED filaments are a thing and they are efficient. Not sure if this one is, but the value to efficiency was worth noting. Probably better now that it runs with no glass bulb.

Does anyone know of any OLED components or OLED lights and their efficiencies? I'm reading that it's all the rage for TVs and phones, but not yet for horticulture and they keep stating the improved efficiency but I can't find any lumens per watt numbers on a white full spectrum light.

F strips and Quantum Boards bro

But seriously, you may be on to something looking at other forms of led. What does the spectrum look like on those types of products?

 

[growingforfun]

People here raged hard on me for trying to bring 140lm/watt bulbs to their attention. Nearly A YEAR AGO. That's 140 with the bulb on. They do pretty good for veg, nearly a 4x4 with I think it was 72 watts.

Oh and these are 2700k.

 

[Hadez411]

Nice. Well here in CanadEH our leds are expensive. I got an led garage light that is 110 lm/W for 1$/w after tax and felt lucky.

Those philips bulbs were 6$, my 27w garage light was 28$ after tax and does a nice 5k

 

[growingforfun]

Nice. Well here in CanadEH our leds are expensive. I got an led garage light that is 110 lm/W for 1$/w after tax and felt lucky

Damn. The ones I got were 20$ for 4x 11 watt bulbs I wanna say. Maybe 24$ tops.

I didn't cut the diffusers off as they work great with them on and figure it would make good diffuse light without hotspots

 

[OneHitDone]

People here raged hard on me for trying to bring 140lm/watt bulbs to their attention. Nearly A YEAR AGO. That's 140 with the bulb on. They do pretty good for veg, nearly a 4x4 with I think it was 72 watts.

Oh and these are 2700k.

Which bulbs are you using?

 

[growingforfun]

Which bulbs are you using?

sylvania.

People were getting bent demanding photos or links to product but I dont post photos and their website is confusing. Just check Walmart it's not like they are rare

 

[OneHitDone]

sylvania.

People were getting bent demanding photos or links to product but I dont post photos and their website is confusing. Just check Walmart it's not like they are rare

Never seen any with lumen/watt that high at wally

 

[growingforfun]

Never seen any with lumen/watt that high at wally

Every few years a spend a few hundred bucks and buy nearly every style of bulb I can find locally and compare them. These were the last rounds winner.

 

[1212ham]

sylvania.

People were getting bent demanding photos or links to product but I dont post photos and their website is confusing. Just check Walmart it's not like they are rare

123 lm/w is the best I can find in the Sylvania catalog, and rather expensive. http://assets2.sylvania.com/media/bin/asset-2420365/asset-2420365

https://www.shineretrofits.com/sylvania-74326-led6-5st19dim827fil-6-5-watt-ultra-led-st19-filament-lamp-medium-base-2700k-dimmable-60w-equivalent.html

 

[Hadez411]

F strips and Quantum Boards bro

But seriously, you may be on to something looking at other forms of led. What does the spectrum look like on those types of products?

Only those? No bridgelux?

 

[growingforfun]

123 lm/w is the best I can find in the Sylvania catalog, and rather expensive. http://assets2.sylvania.com/media/bin/asset-2420365/asset-2420365

https://www.shineretrofits.com/sylvania-74326-led6-5st19dim827fil-6-5-watt-ultra-led-st19-filament-lamp-medium-base-2700k-dimmable-60w-equivalent.html

Ya, as I said their website blows.

And as I've also said, just check next time your at Walmart, I'm sure you will find yourself near one soon. Or dont. I honestly dont care.

 

[crimsonecho]

With lights with unknown spectrums lm/w doesn’t mean much. If you were to compare same spectrum lights then ok. Having said that cree cobs works well for me. Philips 14w leds was good for the bonsai mothers and vegging plants too. I’m not completely sure about how oled works but they cost shit ton of money to manufacture so it would be pointless to use it in an horticultural application at this point.