KingLED KP4000 LED Grow Light for Indoor Plants, Full Spectrum Plant Light with Veg & Bloom Mode, 400W Hanging Growing Lamp for Seed Starting Seedlings Vegetable Hydroponic Greenhouse, 5x5 Grow Tent
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Availability:
In Stock.
Arrives
Sunday, Aug 2
Size: KING4000
Features
- Sunlike Full SpectrumThis 400W full spectrum LED grow light features 2304 LEDs (256 red, 256 blue, 896 white, 896 yellow) delivering 2350 mol/m2/s PPFD (at 6) with 460nm blue, 660nm red, 3000K-5000K white, and 10000 lumens of bright output. Perfect for tomatoes, peppers, herbs, succulents, orchids, lettuce, basil, leafy greens, and microgreens. Fits 5x5 ft or 4x4 ft grow tents, hydroponics, greenhouses, basement shelves, garage gardens, living rooms, or office. Use VEG mode for seedlings/vegging, BLOOM mode for flowering/fruiting adjust intensity by raising/lowering the light with the included ratchet hangers. Energy efficient and quiet operation. Promotes seed-to-harvest growth.
- Veg & Bloom Seed to HarvestChoose from 3 modes VEG mode (boosts leafy greens, lettuce, basil, herbs), BLOOM mode (encourages tomatoes, peppers, flowers, and fruits), or VEG+BLOOM mode for fullcycle growth from seedlings to harvest. Easily adjust light intensity by simply raising or lowering the light with the included ratchet hangers no extra controller needed. The balanced spectrum promotes tight node spacing, healthy roots, and uniform light coverage deep into the canopy. Quiet cooling fans keep the light cool and silent. Ideal for clones, mother plants, and all stages.
- Super Bright Energy EfficientDelivers high PPFD and intense brightness with only 400W of power provides uniform light coverage and deep canopy penetration for all growth stages. Covers a 5x5 ft or 4x4 ft area perfect for grow tents, shelves, balconies, closets, cupboards, basements, garages, living rooms, and greenhouses. Energy efficient design saves electricity while keeping your plants thriving. Ideal for tomatoes, peppers, herbs, lettuce, succulents, orchids, and flowers. Promotes fast, healthy growth from seed to harvest.
- Quiet Cooling Stays Cool & SilentBuilt with highspeed quiet fans and a thick aluminum heat sink, the light operates at 5060F far lower than conventional plant lamps. The lowtemperature design effectively prevents leaf burn, allowing extended safe illumination. Ultra quiet no loud buzzing wont disturb your grow environment. Perfect for grow tents, basements, or garages. Efficient heat dissipation ensures both plant safety and a longer lifespan. Ideal for growers who need a quiet LED grow light with reliable cooling.
- 3-Year Warranty 90-Day Free ReturnKingLED provides a 3year hasslefree warranty and 90day free return. If any issue arises (e.g., fan noise, LED failure), simply contact us we respond within 24 hours and will help resolve the problem quickly. No runaround, no hidden fees. Trusted by home gardeners, hobbyists, and commercial growers. Riskfree purchase grow with confidence.
Description
Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store KP4000 KP1000 KP1500 KP2000 KP3000
Color: White
Shape: Rectangular
Material: Metal
Finish Type: Polished
Light Source Type: LED
Light Source Type: LED
Power Source: AC
Voltage: 110 Volts
Light Output Maximum: 10000 Lumens
Maximum Compatible Light Source Wattage: 400 Watts
Light Source Wattage: 400 Watts
Mounting Type: Ceiling Mount
Light Source Special Features: Full Spectrum
Color Temperature: 5000 Kelvin
Number of Light Sources: 1
Batteries are Included: No
Bulb Base: GU5.3
Wattage: 400 watts
Smart Home Compatibility: Not Smart Home Compatible
Item Weight: 10.58 Pounds
Item Dimensions L x W x H: 25"L x 11.5"W x 2.36"H
Color: White
Shape: Rectangular
Finish Types: Polished
Style Name: Traditional
Material Type: Metal
Shade Material: Aluminum
Brand Name: KINGPLUS
Model Number: KP4000
Manufacturer: KINGPLUS
Manufacturer Part Number: KP4000
Unit Count: 1 Count
Included Components: 1 x Adjustable Rope Hanger, 1 x Hanger Hook, 1 x KP4000 LED Grow Light, 1 x Power Cord
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Aug 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: KING1000
After getting a replacement for my defective unit, I can give a fair review of this light Top brand LED grow lights are insanely expensive. How is it possible, then, that a light like the 1000 watt King Plus sells for so much less? It must not be any good, right? Not quite. While it is true that this light can’t match the top brands, it still does surprisingly well and, considering the price, it may actually be a better value. This is great news. It means it is now possible to grow with LED light without spending a fortune. In fact, a light like this actually costs less than the equivalent HID system. In addition to a lower purchase price, it also costs less to operate, using far less power and generating far less heat. King Plus 1000 Watt Grow Light Features Uses 185 watts — save about 50% on your electric bill over HID lights Equivalent to a 400 watt HID system — but costs less to buy AND to operate Full spectrum light — can be used during all stages of growth 2.5 by 2.5 foot core coverage — nearly equivalent to 400w HID Epistar 10w double LED chips — deeper canopy penetration than 3w or 5w chips Runs on AC85-265V — will work in any country Rated for 50,000 hours — 4-5 years with no bulb changes 3-year warranty — risk-free purchase Includes light, hanging kit and power cord — everything you need to start growing immediately. Advantages king plus 1000w par and coverageThe King Plus series of grow lights was redesigned to use two larger 5 watt Epistar chips together in a single diode. This results in what is basically a 10 watt diode. As such, the light from this fixture will penetrate more deeply into the canopy than the light from a fixture using a single 5 watt chip and much more deeply than any 3 watt chip light. The PAR value in the center at 24 inches from the canopy is 447 umol. At one foot from center, the PAR value is 313 umol. At the corners 3 feet out, it is 91 umol. The core coverage area at 24 inches is 3 by 3 feet. If you move the light back to 30 inches from the canopy, you get a PAR value of 230 umol. Moving it closer gets you 595 umol at 18 inches, 958 umol at 12 inches and 1901 umol at 6 inches. The main reason most LED makers don’t use 5 watt or double 5 watt chips is heat output. More powerful diodes naturally emit far more heat than smaller ones. In order to use them effectively, the light fixture must have an efficient cooling system that can handle the increased heat output. king plus led spectrumKing Plus uses a thickened LED board (3 mm compared to 1.6 mm for other brands) with holes in it to help heat dissipation. In addition to the vents in the board the fixture has two fans and glass form convection, all of which combines to effectively handle the heat generated by the powerful chips. In total, there are 100 of the 10w double-chips on this fixture. They are a mix of red, blue, UV and IR. The exact breakdown of the color spectrum is as follow: 71 red diodes (620-630 nm and 655-660 nm), 14 blue diodes (440-450 nm and 450-460 nm), 8 yellow diodes (605-620 nm), 5 warm white diodes (3500-4000k), 1 UV diode (380-410 nm) and 1 IR diode (730 nm). This gives you a great mix of light that is the exact spectrum plants need. It is a spectrum that will work for every stage of plant growth and the addition of IR and UV serves to boost the quality of your harvest. Natural sunlight also contains these wavelengths, but the majority of LED lights don’t All King Plus fixtures ship with a power cord (available for US, UK, EU, AU, JP) and hangers. They also come with a 3-year manufacturers warranty, so you can get your light repaired or replaced if anything goes wrong. Disadvantages The big, glaring disadvantage of this light is the false advertising. The manufacturer calls this a 1000 watt light, which implies that it is equivalent to a 1000 watt HID system, like some of the top-brand 1000 watt lights. While only the best 1000 watt LED lights are actually equivalent, this one doesn’t even come close. It is basically equivalent to a 400 watt HID light. I hate when manufacturers use misleading names for their lights, but I suppose I can understand the reasoning. So many of the lower-cost (and even many of the big brands, like Kind LED), misrepresent what their lights are actually capable of and if you don’t, people will mistakenly believe your light is not as good. If you can look past that, you’re still getting a great light, as long as you are aware of its actual capabilities. It simply is not going to replace a 1000 watt HID light or come close to the top 1000 watt LEDs on the market. It is a 400 watt equivalent light. But as a 400 watt light, it’s a good one that sells for a very good price. Summary of King Plus 1000 Watt LED Grow Light Review king plus cooling systemShould you get this light? That depends. It is not going to come close to matching a real 1000 watt LED plant light. But it costs so little that you could get many of these for the price of one top-brand light. Let’s look at an example. Say you want to light a 10 by 10 foot area. Some of the best lights on the market are the Black Dog Phytomax-2 line of lights. Their 600 watt fixture (equivalent to 1000 watts HID, because they label their lights accurately) costs $1899 and covers a 5 by 5 foot area, so you’d need 4 of them to cover 10 by 10. Total cost to light the space with Black Dog lights: 4 x 1899 = $7596 If you went with this King Plus 1000 watt horticultural light, you’d need a minimum of 9 lights to cover that area, but let’s just say 12 to be extra sure we have enough light. Each light usually sells for around $200 (though it can cost more, at times). Total cost to light the space with King lights: 12 x 200 = $2400 As you can see, although you need far more lights, you still come out way ahead in terms of expense. That said, a Black Dog light is obviously constructed better, so the chances of getting a defective light are lower. Those chances aren’t high with King Plus either, but definitely higher than Black Dog. Yes, King give you a 3 year warranty and you can return any defective fixture, but you still lose time. Whether the cost savings are worth the potential loss of time, no matter how small the chance of it actually happening, is something you will have to decide for yourself. Personally, I tend to always go with the lower cost option, especially if there is a warranty. After reviewing the Kings Plus 1000 watt LED, I can definitely recommend it and all other lights in the series. But not as a 1000 watt light. As long as we agree
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Reviewed in the United States on August 30, 2018 by Shawn Asbury
Size: KING1000
I own an indoor vegetable and flower urban farm and I'm currently in market for good quality yet not too expensive LED lights for my second location. I was advised to check this little 1000W light and see whats possible when incorporating multitude of those lights in an indoor vegetable farm. My thoughts on this light after short couple day testing in enclosed small grow tent size 3'x3'x6': - great wattage for price - good brightness with nice light output (do not use this light without protective glasses) - very easily manageable temperature inside grow tent without overheating (no need for ac units even when a lot of those units are in operation), in my case temperature inside the tent was exactly the same as outside in the farm (75 deg. F) without any cooling equipment, fans and ducts - top of the unit has constant working temperature of 80 deg. F, temperature inside cooling fan vents was 76 deg. F, bottom of the unit where protective glass panel is located over LED diodes had constant temperature in range between 95 deg. F and 99 deg. F - temperature stayed the same after 48 hours of constant running - it has advertised full spectrum among 8 wave lengths - good penetration of 10W chips (which are in reality double 5W chips, but still not bad at all) - quiet operation, silent fans - 3 years warranty - great price (I think its the best price in the market for what it offers) Possible issues noticed in this couple day testing run: - it did not light up when i turned it on during my video review filming - I had to flip the switch off for couple seconds and flip it back on and it was working fine - I cycled it about 20 times on and off with few second delays and problem did not reappear so maybe it was a problem with my extension cord - I'll keep an eye out on that and keep you posted if anything happens again - not really an issue since it is in the seller description - the real wattage drawn from the wall socket is about 210W (more than 190W advertised). I've read somewhere that usually real wattage of led grow light should be at about 40% of LED diodes wattage (f.e. 600W LED light having real wattage draw of 250W). I'm not sure how accurate is this assumption where there are plenty examples with super fancy and expensive LED lights where much lower "true" wattage LEDs give higher lumens, lux and PAR readings than those of higher "true" wattage. Most technology behind it is the same, with often same exact LED chips in expensive and cheap LED lights. Most important for me are the spectrum, Lumins and PAR readings and these are better in this little light when compared to more expensive LED grow lights. It all comes down to the results you are getting and on those I will update you when I purchase more of these lights and put them to a real test in my indoor vegetable and flower farm. Happy Growing...
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Reviewed in the United States on April 22, 2016 by Arkadius
Size: KING4000
Great quality, fan cools the light extremely efficiently and both the spectrum and intensity match with advertised specs (which is not exactly a common thing in Amazon unfortunately). Botanist with 20 years in professional and hobby horticulture, if we’d have had these LEDs 20 years ago they could have saved us a lot of energy and headaches. Fantastic tech, decent price, easy to use! Just make sure you have a surge protector stationed outside your tent/grow area as the cord is not the longest. I run all power/connecting cables for my lights to through the ceiling rafters in my basement so it works perfectly. The light itself attaches to the ceiling via the usual grow light attachment cables with the height being easily adjustable to raise or lower the light as needed.
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Reviewed in the United States on December 29, 2025 by TNalpinist
Size: KING4000
If I could describe this light in one word it would be “overkill”. This light is insanely powerful. I used it in a 4x4 growth tent along my plants entire growth and I’ve had to raise it a few times as the power was very bright. The only downside I would give this light is that it doesn’t include a dimmer option so the light has to be raised a bit in order to not burn the young seedlings. Overall great after veg stage even while using both lights at once for autos. Lost 1 star because after a year 2 leds have died but still works amazing!
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Reviewed in the United States on June 4, 2025 by Yade Ivy
Size: KING1000
Upon my first use of the KingLed 1000w grow lights the first impression I had was that it may be too small to produce the amount of light that I required. However, when I turned them on I was amazed at the strength of the lights. The full spectrum feature of the lights was very useful and effective, I noticed a faster rate of growth in my Tomato plants during the flowering stage, the increase was very noticeable. The lights were very helpful in increasing the amount of light my plants received, as it was able to stay on longer because of its cooling system. My two Tomato plants were able to yield a satisfying amount, which I’m sure can be partly attributed to these grow lights as I started using them a month before harvesting. Currently I am using two KingLed 1000w grow lights on a batch of 8 Tomato Plants. So far I’ve noticed a significant increase in the seedlings rate of growth while using vege mode, compared to when I had used a cheap 100w LED grow light, the difference is quite noticeable. Although these lights are quite effective,the sound of the fans on the lights become very present over time but it isn’t too much of an inconvenience. My experience using these lights have been for the most part positive, with 18hours on and 6 hours off light cycle and following the manufacturers recommended height from the plants to prevent burning. Even though these are very high quality lights, standard maintenance of plants is still required to have a successful growth , for example maintaining the proper humidity and proper ventilation of the grow room. On top of proper watering and nutrients, which are factors that are not dependent on the lights.But overall these are very effective grow lights and have mostly everything that you need when growing. For the price of $112 you really get everything you expect when buying a high quality grow light.
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Reviewed in the United States on October 9, 2020 Reviewed in the United States on October 9, 2020 by Jo
Size: KING4000
My 2nd year using the KP4000. I start and grow several varieties of seedlings. Mostly Geraniums. I have several Grow Lights from other manufacturers and like my KP4000 the best. Only suggestion I would make is to include a chart as to how high to hang the light above various seed-starts and seedlings (6in-12in-18in, etc.) so they get the preferred amount of light for each growth stage. I would recommend these lights to anyone wanting a quality effective product at a reasonable price.
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Reviewed in the United States on February 25, 2026 by Gerald Congdon
Size: KING1500
This is the right LED to get for any application. At the very least, KING LED is the brand to go with. The price is right where the average person needs it to be. The quality of the light is AMAZING!!!!!! Granted i am new to Hydro, but i did my homework. I learned. I have a medical condition that makes it difficult for me to stand or walk for long periods, so when i want to learn something, i can sit and learn for hours. I found this light, and i am thankful i did. I showed a couple pics, i wish i could show more, but .... Anyway, it is CRAZY bright. Plants grow like weeds...... in there. Its AMAZING. With Co2 from a Mycelium bag, and O2 injection through the nutrients, with this light, i sometimes see 3-4 plus inches a day of veg growth. No Joke!. I was shocked. The packaging for the light is top of the line. There was no way it was going to arrive broken unless UPS kicked it from ohio to NY. Thanks for that!!. The construction is Brick ShatHouse level. Its made to last. The function is easy and quick, Plug in and go. Select your light level with the two switches for veg and bloom. ( i just have both on full time) and its off and running. I used wifi plugs to set the timing, and that is the best way to do it. Big power strip, wifi plugs. Ron Popeil action- Set it and forget it. Check your nutes, and in a few months, beautiful, albeit a bit smelly, tomatoes! GET ONE!!
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Reviewed in the United States on May 30, 2019 Reviewed in the United States on May 30, 2019 by Sean P Curtiss
Size: KING1000
I like how well it’s built and that it came with the pulley system that is awesome however, I was very disappointed with the coverage of this light. I was under the impression that the light would be distributed evenly throughout the size, but it seems that only the very center provides enough light so all the plants that are not right under the middle are bending towards the light. I have the light very close to the seedlings and followed all the instructions. I would not recommend this light if you have more than a few seedlings.
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Reviewed in the United States on May 28, 2026 by DRyden