Led unit how hot should it be at the lens?

[Browneyes1888]

Thanks guys for ur help, i now installed 1500rpm 51cfm 17db fans, i will try this for couple of hours now and see what happens, i hope for better results.

it seems to move faster but not like WOW THIS IS FASTER.... but i can feel some small diffrance of push in the air vents out from the panel, maybe that little more power is enought to get it out correct.

I have one more question when i have 2 others with mars units here.

I have my mars 700 in a pretty small area with panda film, Are ur room super purple like all LED pictures? my room is nearly as bright as a normal lamp. Not really normal but its more white then purple.

And this is full standard spectrum.

Anyone ? =S

my room looks purple but thats in a silver mylar tent
not sure if ure panda film reflects some different way so ill pass on that
wot i will say is 50cfm fans orientated correctly in a mars hydro led would prob match the fans from the factory

 

[MarthaStewart]

Thanks guys for ur help, i now installed 1500rpm 51cfm 17db fans, i will try this for couple of hours now and see what happens, i hope for better results.

it seems to move faster but not like WOW THIS IS FASTER.... but i can feel some small diffrance of push in the air vents out from the panel, maybe that little more power is enought to get it out correct.

I have one more question when i have 2 others with mars units here.

I have my mars 700 in a pretty small area with panda film, Are ur room super purple like all LED pictures? my room is nearly as bright as a normal lamp. Not really normal but its more white then purple.

And this is full standard spectrum.

Anyone ? =S

I have my light in a tent and If I want to be stealthy I close my little Velcro window and dont get any light leaks. But with the window open and if my room is dark it basically looks like a space ship landed in my house haha

 

[kollos]

I have my light in a tent and If I want to be stealthy I close my little Velcro window and dont get any light leaks. But with the window open and if my room is dark it basically looks like a space ship landed in my house haha

haha well i guess its more purple then i discribe it, because i just compare it to my small apollo unit, when only apollo on its super purple like pictures, when mars goes on KABOOM it lightens the whole north pole, and its more "white" "non purple" then the apollo light, maybe because its more power in the other spectrums also in this unit. i got 2 mars 700 and both is same so it cant be wrong anyway,

i just mean its not super dark purple like pictures

I got one last question again for u guys, sorry for nagging, are u for real 100% that if u take ur backside of ur hand, press it against the glass, its not 5 of 10 in hotness??? mine is easy 8

 

[Snook]

I just shot mine with an infrared thermometer.. 73.5*F. glass is cold to the touch, warmth from inside glass, not much.. ?? and I'm new to LEDs but these fans yall are replacing, they are the ones in the LED enclosure. yes? if so, the exhaust fan for the grow area should handle any xtra heat buildup, no?

EDIT: 650 w..

 

[kollos]

I just shot mine with an infrared thermometer.. 73.5*F. glass is cold to the touch, warmth from inside glass, not much.. ?? and I'm new to LEDs but these fans yall are replacing, they are the ones in the LED enclosure. yes? if so, the exhaust fan for the grow area should handle any xtra heat buildup, no?

EDIT: 650 w..

Hello! Is this a Mars unit u talk about? because then i donno wtf going on, i have good spin on the fans now and still its very hot. maybe 7 of 10 when 10 is when u have to take off hand,

so pretty hot.

im getting fed up with this! gah... 3d fan change and its still fuc#¤"#" hot..... gahhh.....

I dont understand ur question, the fans is the fans in the led unit, and im not afraid of heat in the grow area its ice cold, i have to buy a heater tmr, but im afraid the unit will break when the glass is hot... and people tell me their glass is _COLD_

 

[r2k]

It still seems strange to me that the original fans are not sufficient to keep your light cool. I gotta believe something else is going on, the manufacturer would not have designed a product for thermal failure. What else are we missing? Is something blocking the air flow?

-r2k

 

[kollos]

It still seems strange to me that the original fans are not sufficient to keep your light cool. I gotta believe something else is going on, the manufacturer would not have designed a product for thermal failure. What else are we missing? Is something blocking the air flow?

-r2k

The orginal fans is doing a excellent job i hope bro! but i replaced them after 5mins of use because they sound like an ufo is hoovering over my living room. i swap them for quiet once, but this is my 3d time i change up in sound and speed, and they are still hot. when people say they have COLD glass. thats freaking unbeliveble!! one guy sayd he have 60cfm and doing great, im at 52 now and im not great if great is cold glass!!! im getting freaking angry and mad now i donno

 

[Phychotron]

http://advancedledlights.com/blog/ds-200-led-grow-light-vs-topled-mars-ii-400/

they're claiming 88F on the hottest part of the case for the 400. about how hot is the case?

 

[kollos]

http://advancedledlights.com/blog/ds-200-led-grow-light-vs-topled-mars-ii-400/

they're claiming 88F on the hottest part of the case for the 400. about how hot is the case?

This maybe is not exact, but its excally 88F now but on a normal cheap termometer that is placed on top of the mars unit and showing "inside" temprature on the meter, but the glass is, once again, hot,

people claim cold glass.... getting crazy just want to call some chinese manufacturer and yell of confusion =/

 

[r2k]

The orginal fans is doing a excellent job i hope bro! but i replaced them after 5mins of use because they sound like an ufo is hoovering over my living room.

Hmmm, sounds like you might have picked fans based on noise rather than performance characteristics. The fans were probably noise for a reason.

I would suggest you try an experiment and replace the original fans. Let it run for an hour or two with the original fans and then check the surface temperature of the lens. If you alter the design, you have to expect it to perform differently. I suspect the original fans were selected because they move the correct amount of air for the enclosure. The replacement fans probably don't meet same specs when it comes to working against resistance.

You should also hook the replacement fans up and get them running while the case is apart, and then (while the fans are running) slowly mate the back to the lens and listen to the fans. Listening to fans is a powerful diagnostic tool. If the pitch goes up as you mate the parts, it indicates the fan airflow is constricted. Try putting your hand over the sucker tube on a shopVac or leaf blower and you will see what I mean. All fans I have ever tried this with respond exactly the same and the pitch increases. Usually, it means the intake is constricted.


-r2k

 

[Browneyes1888]

This maybe is not exact, but its excally 88F now but on a normal cheap termometer that is placed on top of the mars unit and showing "inside" temprature on the meter, but the glass is, once again, hot,

people claim cold glass.... getting crazy just want to call some chinese manufacturer and yell of confusion =/

why yell confusion? it was u who changed the fans
and ill say this again i BET u have put the fans the wrong way around and u are sucking air out of the top inside of sucking it in onto the heat sink
ive posted this about 3 or 4 times but u havnt clarified if u have the fans the correct way around

 

[MarthaStewart]

fans should be sucking air from the top and pushing it out of the sides like browneyes said. You should of prob just left it alone if your temps were fine before you started messing with it.

 

[Matt8800]

Even though the unit itself might be hot, it might be because of the power that is running through it, which is different than radiant heat. Plants under LEDs like a hotter room because they put out less radiant heat. Black dog says the ideal room temp for LEDs is 84 degrees F.