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SZHLUX LED Grow Light for Indoor Plants, Dimmable Grow Light for Greenhouse (PT4000, 400W)

  • Based on 166 reviews
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Color: PT4000


Size: 400W


Features

  • Infinite close to sunlight wave for plants, over 95% light energy can be absorbed by plants. White, blue, red and IR (3000K, 5000K, 660nm and IR 730nm). 3000K providing more reddish light and the 5000K providing more blueish. Especially 5000k blue light promotes seedling growth, the 660nm red and 730nm IR light is most useful for plant photosynthesis, promote plant flowering and fruiting, increase yield and crop quality.

Color: PT4000


Shape: Rectangular


Material: Aluminum


Finish Type: Aluminum


Light Source Type: Light Emitting Diode


Color: ‎PT4000


Shape: ‎Rectangular


Material: ‎Aluminum


Finish Type: ‎Aluminum


Light Source Type: ‎Light Emitting Diode


Shade Material: ‎Aluminum


Power Source: ‎Corded Electric


Brand: ‎SZHLUX


Item Weight: ‎9.9 Pounds


Style: ‎Modern


Voltage: ‎120 Volts


Brightness: ‎57400 Lumen


Maximum Compatible Light Source Wattage: ‎400 Watts


Light Source Wattage: ‎400 Watts


Mounting Type: ‎Hanging


Bulb Features: ‎dimmable


Color Temperature: ‎3600 Kelvin


Number of Light Sources: ‎864


Are Batteries Included: ‎No


Product Dimensions: ‎43.3"L x 43.3"W x 2.3"H


Light Output Maximum: ‎57400 Lumens


Manufacturer: ‎SZHLUX


UPC: ‎723258093531


Wattage: ‎400 watts


Part Number: ‎PTA1060W


Item Weight: ‎9.9 pounds


Item model number: ‎PTA1060W


Item Package Quantity: ‎1


Finish types: ‎Aluminum


Included Components: ‎power cord


Special Features: ‎Adjustable Height


Batteries Included?: ‎No


Batteries Required?: ‎No


Wattage: ‎400 Watts


Date First Available: December 8, 2021


Frequently asked questions

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Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.


The SZHLUX PT4000 LED Grow Light is generally commended for its exceptional brightness, efficiency, and quality build that fosters plant growth. Users find value in its accurate 400W output, built-in timer functionality, and its impact on their plant's development. Some reviews revealed a few shortcomings with control quality, the lack of a dimming feature, and minor delivery discrepancies.

Pros

  • 🌿 Light is effective, promoting explosive plant growth
  • 🕒 Built-in timer found useful by reviewers
  • 💎 Excellent value for the cost
  • 💡 Accurate 400W power output
  • 🔧 Easy installation and setup

Cons

  • 🌗 Lack of a dimmer option
  • 🎚️ Control quality does not match the rest of the unit's quality
  • 💼 Minor issues with delivery and package contents
  • 📘 Poor quality of the English language instructions

Should I Buy It?

If you're a horticultural enthusiast in need of a reliable, reasonably priced grow light that offers extensive benefits to plant growth, the SZHLUX PT4000 LED Grow Light is a worthy consideration. Despite a few minor drawbacks, most users are satisfied, noticing remarkable improvement in their plant health and growth.


  • Like light
Color: PTA1060W Size: 1060W
Really good light at least the plants like it. Its extreamly bright i bought 2 lughts had 2 return one it was all beat up in shipping one of the light bars was broken. I would have just swapped a bar out but the company that makes the lights does not respond back so I just returned the light and now I just have one light but it's working very well ... show more
Reviewed in the United States on August 11, 2025 by Lisa M Summers

  • Excellent value
Color: PT4000 Size: 400W
I needed to upgrade my flowering tent from 2x2 to 4x4. The specs on this unit matched those of another unnamed manufacturer at about 1/3 the cost. The tent surprised me showing up the next day so I set it up with the old TS2000. Happy surprise, SZHLUX PT4000 LED Grow Light showed up a week early! Setup was easy, just slide shades onto the ends and hang it up. It's very lightweight and puts out a lot of light. The only negative is the lack of clarity and poor quality of the English Language timer and programming instructions. This doesn't harm my system, but I would like to better understand these features which might be of benefit to my operation. ... show more
Reviewed in the United States on July 16, 2023 by Edward John Raynie

  • Nice light
Color: PT4000 Size: 400W
Haven’t had a full run yet as I just received light on Saturday. When I first plugged it in, nothing. I packed it up and later figured out I left the power cord out, so I opened up again & thought why not? I plugged it in again and lo and behold it powered up. The instructions that comes with light sucks! Thankfully another person bought same light and figured it out and posted a how to video on Amazon review section. Yes it’s dimmable but not in the same way we’re used to. The light comes with digital timer and a temperature probe you plug in light & let it hang right above canopy. This is how you dim light by your temp control? I know confusing but I’ll get it figured out. Shoutout to YouTuber BudRush auto for recommending. He grows monsters with this light. I’m ready to buy my next one. ... show more
Reviewed in the United States on October 14, 2024 by James

  • Not happy no support
Color: PTA1060W Size: 1060W
Not very happy. Part of one bar doesn’t work. When adjusting the brightness 0 is brighter than 100. At 20 both settings turn lights off. 70 is more what I would think 50 would be. Unit went together quickly. Definitely use 2 people to hang due to size. As this is the 1st review for this light, thinking 1st shipment. I was looking to order another light due the size of my tent. I emailed the company directly guess I’ll update on the results. Honestly a bad product does happen, would hate to ship this back due to size and I’m at 60 days. Hope my plants don’t suffer. Definitely not a happy grower. Purchased this vs more well known companies. Was willing to take the chance after reading about all the features. Update. Was told a new light bar would be shipped. Nothing was sent. Sent email on 4/26. Received an email back stating “ We're sorry for the problem, send me your address please, we'll send a light bar from our factory.” 4/28. When asking about the dimmer switch I was told “ You can ask many cannabis growers in FACEBOOK GROUP "SZHLUX Lighting", there're many growers like you.”. 5/4. So if the manufacturer can’t help I’m not sure I have any faith in the company especially if they want other growers to address a quality problem. As of today I have not received any warranty support for 2 quality issues. I would recommend ordering from a different company. Look at other reviews for other lights they sell. Wish this would have been corrected. Now I have to ship it back and hope my plants don’t get all screwed and get light damage. ... show more
Reviewed in the United States on April 26, 2025 by Chuck Chuck

  • Great grow light!!! 😁
Color: PT4000 Size: 400W
This light works very well! It has a timer you can set to turn & off on whatever times you need. And it has 3 settings.... Full spectrum with all 10 lights on, with only 7 lights on, & only 5 lights on. Started my grow 2 weeks ago & couldn't be happier.
Reviewed in the United States on August 25, 2024 by Nikki

  • Extremely Bright Light for affordable price.
Color: PT4000 Size: 400W
I currently have this set up in a 5x5. I'm using it two grow some tropical Bonsai Trees during colder months. In the past 2 weeks my Trees have received more new growth that they have in the last 6 months next to a south facing window. The leaves are greener, the Trunk looks fuller. It is in a controlled environment where the temperature stays at around 80-82°F and RH around 40-50%. Im leaving the light on 16 hours a day. But if your wondering if this will do better than a south facing window. Then answer I yes. I also have watermelon, Jalapeño and cantaloupe around the edges of the tent and they love it. ... show more
Reviewed in the United States on April 15, 2022 by Valerie Sanchez

  • You get what you pay for
Color: PT4000 Size: 400W
After 2 months one of the bar lamps went out 6 months later and I still haven't been able to get a replacement There websites and phone number doesn't lead to anywhere
Reviewed in the United States on October 7, 2025 by Larry Will

  • Searched for months before picking this baby
Color: PT4000 Size: 400W
Starting your own grow room is a lot of fun and of course its very rewarding the more you know. So I'm learning a lot. But this light here has the best group of ppfd's that I have found on most lights. The good price is also a good factor.
Reviewed in the United States on December 7, 2023 by james

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