Indoor LED advice sought

[Nelson]

Voltage comes in two basic types. North america uses 110 to 120 volt and Europe and some other countries use 220 to 250 volt power. You cannot interchange the two voltages unless the unit comes with a switch to use both powers. Don't plug a 120 volt light into 240 volt power it can destroy the unit, blow your fuse or even start a fire. The only way they can be used is to use a voltage adjusting line transformer.

Is this still a LED thread??

Here goes my question. I recently bought a 147 watt LED light. I read in the early part of this thread that the LEDs are throttled back for longer life. OK I get that. Some guessing of 50% to 75% output only.

Now my question to the electricians/electrical engineeers. If my light has LEDs combined maximum watt output of 147 watts but the voltage can be between 90 to 260, does watt output increase/decrease depending voltage?

Correct me if incorrect but I think UK & USA uses around 110 volts. Is this why the wattage output is less than 100%? If a person has 260 volts, would the watt output be much higher than a person with 90 volts?
Hope that makes sense?

 

[dingo]

Thanks Nelson for the voltage switch importance but does volts affect the wattage output?

 

[Nelson]

Yes According to Ohms law. Watts equal voltage times current. If the voltage goes up the curresnt goes up along with it but there are wlwctronic items internally in the lamp like voltage regulators and such circuits that hold voltage steady inside the device so the LEDs may not glow brighter. The internal voltage regulator may be stressed to the point it burns out trying to hold the voltage down and the units internal components may fail. I strongly suggest you don't raise the esternal voltage at the plug.

Thanks Nelson for the voltage switch importance but does volts affect the wattage output?

 

[dingo]

Where I live, we use 240 volts. So my 147 watt LED light may produce more lumens than a person using the same LED light in USA.

 

[sielm]

I think a given lamp with XXX watts has the same potency either with 120V or with 240V, what changes there is the current flow (amperes). Correct me if I'm wrong, I was really bad at electronic stuff

 

[Nelson]

I think you got it right.

I think a given lamp with XXX watts has the same potency either with 120V or with 240V, what changes there is the current flow (amperes). Correct me if I'm wrong, I was really bad at electronic stuff

 

[Chester]

Good job, mate. Can you tell what is the dried weight after and some smoke report ? Soon will update too, I think there is a big difference than the last photos.
:smokebuds:

First part of the harvest weighed in at 36 grams once dried to 65% RH. Quick dried a few small buds to smoke over the recent holiday weekend using a closed box w/ dessicant. Little harsh out of a joint but amazingly smooth out of a pipe. High was pleasant, primarily a head high probably because I harvested while the trichomes were milky w/ no amber showing. Not as potent as I hoped for but still very early in the cure. I expect the second half of the harvest to weigh about 20 grams and to possibly be a bit more potent. Luckily I have other herb to smoke so I can leave this stuff alone until it's had a proper cure. About 5 days into drying my new Caliber III hygrometer arrived and it probably saved my harvest as the one I had hanging on the wall was off by about 20% RH. Luckily the herb never dropped below 60% humidity. Due to not knowing the correct humidity I spent about $40 on humidity control before I learned my house was already at the perfect RH for drying (55%). I will be burping the jar for a couple minutes a day until the chlorophyll smell disapates. A small amount of air movement hastens drying dramatically no matter how indirect. My next grow will be auto Blue Mystic once again. I'll be planting 3 seeds in 3 gal pots and looking for a yield of 2-3 ozs.

 

[agito]

I think a given lamp with XXX watts has the same potency either with 120V or with 240V, what changes there is the current flow (amperes). Correct me if I'm wrong, I was really bad at electronic stuff

but 120v may have a greater powerdrop if longer or thinner cables are used which may effect growth and will user higher amps vs 240v

 

[VapedAs]

Can't imagine they would let entire countries suffer with 120v being a "lesser strength" than that of mine or Dingos 240-260v with Wattage output. Does make you wonder what those extra 140Vs are doing while we aren't looking..:smokebuds:wish i had a meter to read my 135W real output but all's I knows is she bright... she bright:thread:

 

[Chester]

Harvested the rest of my indoor plants today. Eleven days since harvesting the top halves, they did bulk up some. Thanks all for the great advice that helped make this grow successful.