All new indoor LED growth lights mimic the intensity and spectrum of sunlight, allowing plants to grow faster and produce higher yields at night. Veg LED plant growth lights also consume very low power, and are very durable and long lasting.

Another benefit of replacing your lighting system with the best LED grow lights is that they operate at a much lower temperature than other types of indoor grow lights.

When best LED grow lights were first on the market, their cost was between five and ten times as much as their fluorescent and HID alternatives. Fortunately, LED technology has developed at lightning speed, and LED grow lights are now considered by many as the best way, dollar for dollar, to light a successful grow with consistent yields.

Whether you are a beginner and want to start with low-wattage LED plant growth lights, or have a larger growth space and want to complement the existing lights with others, you need high-quality LED plant growth lights.

500W LED grow lights are excellent choices for all growth stages, and it has the same function as any other higher watt grow light.

Grow variables
It is important to understand that the number of actual watts that you need for your grow will vary depending on:

Plant type (high light or low light)
High light plants - i.e. tomatoes, peppers, etc
Low light plants - i.e. herbs and leafy greens (such as basil lettuce)
Growth phase
Seedlings, vegetative, and flowering plants all require a different amount of light
Total area of your grow
A larger grow area will require more power
Watts per square foot
The average LED grow light draws about 32 watts to cover 1 sq ft for flowering. Compare this to a typical HID fixture which rings in at 40 watts per square foot (assuming a 5’ x 5’ area, or 25 sq ft coverage area). Using an HID in a 4’ x 4’ will bring the power coverage up to 62.5 watts per sq ft. (The energy saving that growers can expect from using LED grow lights instead of HID is around 38%. This energy savings only takes into account to savings growers gain when using LEDs fixtures. It does not account for other environmental factors where growers can save energy. For example, less ventilation and air conditioning may be used, or foregone completely, depending on the size of the setup and ambient temperatures. Total power savings may rise above 50% in certain scenarios.)
Different LED grow lights will have different efficiencies. More efficient LED grow lights will use fewer watts to emit the same amount of light that a less efficient LED grow light will exude. Therefore, as mentioned above, wattage is not the most accurate tool to know how powerful of a grow light you need for a particular coverage area.
LED Wattage Chart Explanation
The wattages listed below assume you are flowering your plants. If vegging, you might consider reducing your wattage by 50% since vegging plants only require about half the light intensity. As always, it is best practice to follow the manufacturer's recommendations.

Wattage charts
Assume about 32 watts/sq ft (actual LED wattage) for flowering. Fewer watts might equate to smaller yields while more wattage may lead to larger yields.

Quick Guide (watts per coverage area)
1' x 1': 32 watts (~30 to 40 watts)
2' x 2': 128 watts (~120 to 140 watts)
2' x 4': 256 watts (~240 to 300 watts)
3' x 3': 288 watts (~250 to 300 watts)
4' x 4': 512 watts (~500 to 650 watts)
5' x 5': 800 watts (~700 to 900 watts)
4' x 8': 1024 watts (~900 to 1100 watts)
6' x 6': 1152 watts (~1000 to 1200 watts)
Recommended wattage assuming 1.0 sq ft/plant
Plants Square Feet Wattage from Wall
1 1 30 to 40 watts
2 2 60 to 80 watts
4 4 120 to 140 watts
6 6 180 to 200 watts
8 8 240 to 300 watts
10 10 300 to 340 watts

Recommended wattage assuming 2.0 sq ft/plant
Plants Square Feet Wattage from Wall
1 2 60 to 80 watts
2 4 120 to 140 watts
4 8 240 to 300 watts
6 12 360 to 400 watts
8 16 500 to 650 watts
10 20 600 to 800 watts

Recommended assuming 4.0 sq ft/plant
Plants Square Feet Wattage from Wall
1 4 120 to 140 watts
2 8 240 to 300 watts
4 16 500 to 650 watts
6 24 700 to 860 watts
8 32 900 to 1100 watts
10 40 1100 to 1400 watts

Top Picks 500 Watt Led Grow Lights
ECO Farm ECOZ 510W Samsung 301H Chips LED Grow Light With Separately UV+IR Control

1. Save 100%-200% on lighting compared to other brands;2. Reduce HVAC and electricity costs by 50-60%.
3.Make you get 30% Higher Yield compare the traditional lamps, Increases revenue with better quality flower and higher yield(maximize crop yield by growing vertical).
4. Built with the best parts ,Top Bing Samsung LM301H & Osam Chip and brand driver for higher efficacy and longer lifespan.
5. Most trustable Full-cycle Sunlike Spectrum with proven result, optimized for rapid growth and complete plant development.
6. 3 Chanels Dimmers, VEG switch , Bloom switch ,UV switch separatly controlled, Freely adjust the lamps according to different growing stages;VEG dimmer to control whitelight5000K,oneBloomdimmertocontrolwhitelight+redlight(3000K+660nm+730nm), and UV dimmer to control UV 395nm.
ChilLED Tech Growcraft X3 – 500W LED Grow Light

Innovative Rugged LED Light Bar System – Large footprint for even canopy coverage
Slim Profile Passive Cooled Design – Only 1.375in thick & no moving parts
Growcraft Yield Max Spectrum – 3rd Gen 2020 technology – maximum results
Linear Power Control – 25W – 500W dimmable range
Light Engine Efficacy – 3.26 μmole/J – 2.73 μmole/J
Full System Efficacy – 3.08 μmole/J – 2.58 μmole/J
Light Bar LED Information:
Samsung 3000K White LEDs – 140 per Light Bar
Samsung 5000K White LEDs – 140 per Light Bar
660nm Deep Red LEDs – 15 per Light Bar
Optic LED Optic 8 Dimmable 500W COB LED Grow Light

Specs

Model/SKU: Optic 8+/op8+
Power output: 500 watts
HID equivalent: 1000 watt DE HPS
LEDs: CREE COBs & OSRAM secondary arrays
8 x CREE CXB3590 COB LEDs (132W max & driven 50W continuous)
6 x 3500k Daylight White COBs
2 x 5000k Cool White COBs
32 x 3-watt OSRAM ultra-efficient LEDss with glass projection lenses
Optic LED has now seamlessly integrated eight of CREE's largest most efficient COBs (XLAMP CXB-3590) with industry-leading glass optical projection lenses to give you unprecedented light penetration with the highest PPFD of any 500-watt lighting system.
The combination of these two technologies combined with a proprietary blend of 3-watt Osram LEDs will give you significantly improved grams per watt yield and significant increases in trichome density and quality.
Grow Elite 500W LED Grow Light

Optional Grow Elite™ Remote Control accessory allows full color spectrum tunability and grouping of multiple fixtures at your finger tips.
While the Grow Elite™ 500W alone provides premium full spectrum light, the color spectrum tunability makes it easy to produce the ideal, customized blend of red, blue, green and yellow light to promote accelerated plant growth during both the vegetating and flowering stages of development.
Grow Elite™ 500W has a built-in timer for more efficient grow cycles - Choice of 5 presets: 2 hours, 4 hours, 6 hours, 8 hours or 24 hours on
Grow Elite™ 500W consumes 50% less energy than 1000-Watt high intensity discharge - Can last up to 100,000 hours of continuous use
LED Grow Lights produce light more efficiently than other grow light alternative such as High Intensity Discharge (HID) or High Pressure Sodium (HPS) lights, which consume more energy to produce the same light output.
LED Grow lights produce greater light output while emitting less heat to avoid leaf burn and running cool enough that no additional cooling sources are necessary, as often required with other types of grow lights.
LED Grow lights often have color tunable full spectrum light whereas other types of grow lights limit you to one light spectrum. Additional spectrums can be achieved in HPS fixtures by changing bulbs, but only one can be delivered at a time.
24 hours / 365 days of non stop crop rotation - Not climate dependent.