ultra led flood light will they work to grow plants?

You can probably keep a 1-2 week seedling under it. But it will not give you good results throughout the entire grow.

 

It's 18w and probably uses 0.5w diodes(if even that). It's simply not intense enough for flowering.

 

Lumens are not a good indicator of a light. Lumens is the realitive brightness of a light to the human eye. You can have 100,000 lumens and no grow spectrum.

Also that light is has probably 2-3 LED Diodes at most and its 18watts. 18 watts will grow you some grass maybe and as above said very low wattage Diodes.

Thats a great example of how a light can be bright to the human eye but useless for anything else.

But if its free give it a shot!

 

The grass you walk on outside.

You can try it it def wont hurt. Just wont help really. Thats like trying to grow something with a 13 watt CFL. People have posted asking about that lol.

 

Because light intensity still matters and thats really only achievable through wattage. I once owned a 90w UFO I have a whirl. Its actual power draw was 90 watts as well. Thing worked fine for veg then went kuput in flowering. Just did not have the punch to see it though. A 90w UFO is good for about one plant as well. Sold it. Then I tried a 240w Blackstar LED panel. At the time was new to the LED world and did not realize that LEDs run at 50% stated wattage. Put my meter on it was pulling 135 watts. Good plant to veg in and probably 1 plant could be brought to flowering.

Bit the bullet and got a monster 800w 5 watt LED Panel. Thing works awesome. The higher wattage makes for blistering light intensity on par with a HID light.

Need some proof look up some CFL grows. Yes you can grow with them and get good results but usually the plants are smaller or stretched to hell..they lack severe light intensity. Go to the HID side even a 250w HPS light or a high out put LED panels and you see some primo bud, rock solid nuggets, nice full large plants.

 

This months High Times actually revists LEDs and heres a quote on the number one concern of LEDs "LED Lamps are composed of small bulbs (diodes). These diodes are severely lacking in power compared to HID bulbs, which is why there grouped together in large arrays on LED panel boards....a lamp would have to have 500 or more LED Diodes to create the same light intensity as a 1 1000w HPS lamp.).

That would cause the LED panel to cost a fortune.

 

Try it Somehow though since a 90w LED UFO sucked ass I doubt that thing will do much but try it and post a journal on it.

 

For all intents and purposes it does. If your panel is 300 watts using 3 watt LED Diodes then your using most likely 150 watts. If you have a cracker jack LED maker they can boost that if they can deal with the heat generation. Increase in wattage increases light intensity.

The panel I have now is 800 watts but pulls 690 watts with everything on. Thats more then 4 watts a LED vice the 50%. They achieved that by having a huuuge heat sink..the light weighs in at 35lbs. As a result its light intensity is considerably higher then most LED panels. Higher wattage higher light intensity.

You asked our opinion We all gave it.

 

I did see that. Good luck. Cheers

 

I would imagine they do. Rather then reinvent lighting units the dump ass light bulb makers shoe horn LEDs into a shape so we can continue to use traditional lamps. LEDs can be made into all sorts of cool lighting apparatus's instead we still use the basic design that originated in 1802. Idiots.

They give off lots of heat because the design of it is such that theres no real room for cooling. LEDs do generate alot of heat but its mostly localized at the diode itself.