What would be the Cost to run these LED's

[greenthumbomaha]

Both units were purchased from Amazon Warehouse in 2015. The link is outdated and takes you to different units, but the ones I bought are 300W and 600W and the same clunky shape. I dislike the pink tone and learned of the need for eye protection and never took them out of the box. I need lighting for another shelf. I watched a guy on youtube using a newer flat panel light and thought I would try mine first. How much would it cost to run one of these older lights for the next month and what would be their best phase of growing use?

I'd have to use them on practice seedlings first.
In the last few years I bought a cheap pink LED at Walmart and fried my plants. They were flowers. I tried again and moved the light far away but I'm never really sure of the plant to light distance with these pinks. I'm still old school with the two bulb shop light and multiple Sunblaster T5 and Viagrow T5 set ups.


My actual unit is Galaxy Hydro Grow Plant Light 300W Hydroponic Grow Lighting 9 Band and I paid $90.


The brand was a 600W galaxy hydro when I bought it and I paid $180.
Roleadro Plant Grow Light, 600W LED Grow Light Full Spectrum Plant Light Dual-Chip Growing Lamp with ON/Off Switch,Daisy Chain for Hydroponic Indoor Plants Veg and Flower (only 110V)

- Lisa

[karstopography]

https://marshydroled.co.uk/blog/underst ... 10.8%20kWh).

[karstopography]

I believe if the amount of watts per hour is known, then knowledge of the cost of electricity per kilowatt hour would also be essential to the formula. The cost of electricity per kilowatt hour is generally found on the electricity bill. I believe in the link I shared in the previous post a 600w light was costing about $117/month running 18 hours a day, but that’s in UK where the rates are generally considerably higher than most of the US, excluding New England, New York, California and Hawaii.

[worth1]

If a KWH cost a dollar and you use a thousand watt light it will cost you one dollar for every hour used.
If they are left on for 16 hours a day it will cost 480 dollars a month.

[zeuspaul]

It's common for LEDs to state a watt equivalent to standard incandescent light bulbs. All of my LED grow light bulbs were rated about 10x their actual wattage. For example my 200 watt grow light is actually 15 watts.

I found this comment on Galaxy. I think the Galaxy may have other things contributing to total wattage than just the LEDs such as fans? You would need to find the actual specs or use a watt meter to know for sure.

This is an upgrade to the standard 600W GalaxyHydro model, and comes equipped with everything from the previous generation along with some notable upgrades and a great price! The 600W (actually 250W) is affordable and introduces white LEDs that output natural light at 3000K color temperature. It utilizes 5W chips and 120° lenses.
https://www.epicgardening.com/roleadro- ... ro-review/

[worth1]

Yes a 100 wattt cfl draws about 27 watts.
I had 1200 watts on my plants doing this.
12 100 watt CFL lights.on a frame.
Powerd it off a lamp cord

[zeuspaul]

IF the 600W Galaxy Hydro draws 250 watts at full power (is it dimmable?) and IF your electricity is 12 cents per kilowatt- hour, (the average price in Nebraska --I'm jealous, I pay triple that) and you use the lights 14 hours per day the cost per month would be $12.60.

250 watts x 14 hours equals 3500 watt hours divided by 1000 equals 3.5 kilowatt-hours per day.

3.5 kilowatt-hours x 12 cents per kilowatt-hour equals 42 cents per day.

42 cents per day x 30 days equals 1260 cents per month.

1260 cents per month divided by 100 equals $12.60 per month.

[greenthumbomaha]

Wow, lots of info here that I need to process.
Yes, we have a historically low energy rate, but someone noticed so a huge rate hike was announced prior to the increases in the rest of the country. Property tax is actually higher than the big cities so it evens out somewhat
These units are heavy , maybe a fan is involved but I just don't remember. I walked out without taking a picture when I was at the cabin today watering my overwintered herb plants. The weather forecast is getting ominous for blizzard conditions and 60mph winds tomorrow night, so I was sure to gather any seed starting supplies I might need for the next week. I was in a tee shirt and hoodie today, and I was hot.
I wonder if mice would be deterred by those pink lights, especially on their favorite, the attractive pepper seedlings.

I will check on my bill for the rate with OPPD and see if is really 12 cents. I got a $500 electric bill one month the summer before last.

[rossomendblot]

I think more modern LED grow lights are much more efficient than the older blurples (blue-purples). My grow light has a maximum usage of 100W, but I only ever need to run it at 30W or so for seedlings and young plants, covering 6 square feet in the grow tent. I think I grew micro toms to fruit at that wattage too. My peppers grow under the light from February to mid-April, and even that relatively low wattage keeps them looking great.

[karstopography]

My Fedica 600 watt, the CR600 model uses 65 watt at 100% brightness. I never have it at 100 percent. I gradually increase the light from around 25-30% at germination to maybe 60-70% near the end over the few weeks the seedling and transplant tomato, pepper, and eggplant plants are under the light.

These plants are not supposed to be at 100% brightness of these LED dimmable lights like the Fedica. That amount of light is harmful at those early stages of growth.