Not everytime it is easy to buy a best 400w hps lamp. There are hundreds of 400w hps lamp available on the market from various manufacturers, which is enough to confuse you. They are so similar in terms of performance, quality, longevity, and overall user experience that making a final purchasing decision may be difficult. On that occasion, a proper buying guide can assist you to choose the suitable best 400w hps lamp for you before you click on the ‘Buy’ button.

In this article, we will go over a few important points to consider about before buying a 400w hps lamp. It can be considered an acceptable review guideline for you, as this will cover the advantages and drawbacks of your desired product, including its sustainability, affordability, features, and practical benefits. Another feature will be a comprehensive and detailed comparison of a few similar products. As a result, you’ll be able to quickly select the best option for your requirements. Let’s take a look at what’s going on inside.
10 Best 400w hps lampReviews
We tried to find the top ten best 400w hps lamp from thousands of different products in this section. This list will make a great impression that you’ll be able to easily find your desired 400w hps lamp in a couple of moments. We focused on their utility, performance, durability, outlook, affordability, and previous user experiences. We are confident that this list of the top ten best 400w hps lamp will help you select the one that best fits your needs.
At a Glance
![]() | iPower 400W CCT 2100K Pressure Sodium HPS Grow Light Bulb Lamp with High PAR Enhanced Red and Orange Spectrums for Plants Growth, Transparent | Buy Now |
![]() | iPower GLBULBH400X2 400 Watt High Pressure Sodium Super Grow Light Lamp Full Spectrum HPS Bulb for Plants, 400W, white | Buy Now |
![]() | Eye Hortilux HX66620 Hortilux Super HPS (High Pressure Sodium) Enhanced Spectrum Lamp, 400W, 400-Watt, Natural | Buy Now |
![]() | iPower GLBULBM400 400W Grow Light Bulb Metal Halide MH Conversion Lamp for Plants with High PAR Enhanced Blue and Violet Spectrums CCT 6000K | Buy Now |
![]() | iPower GLBULBH400X2V1 400 Watt High Pressure Sodium Full Spectrum Grow Light Lamp HPS Bulb for Plants, 400W, CCT 2100K, Ultra Bright 55,000 Lumens | Buy Now |
![]() | 100W LED Corn Cob Light Bulb,Replace for 400 Watt Metal Halide HPS CFL HID lamp,5000K E39 Mogul Base,for Commercial and Industrial Lighting Bay Light Fixture Warehouse Workshop Gyms | Buy Now |
![]() | Hydro Crunch ND911009200 400-Watt High Pressure Sodium HPS Grow Light Bulb Lamp, 400W, Clear | Buy Now |
![]() | TOPHORT 400 Watts Digital Dimmable Electronic Ballast for HPS MH Grow Light Bulb Lamp (400W, Blue) | Buy Now |
![]() | TSEXES 120W LED Corn Cob Bulb,E26/E39 Mogul Base Lamp, 6000K Daylight 18000LM Replacement 400-600 Watt Metal Halide HID HPS CFL, for Garage Warehouse Parking lot High Bay Work Shop Lamp | Buy Now |
![]() | iPower GLSETX400DHMWING20 Horticulture 400 Watt HPS MH Digital Dimmable Ballast Grow Light System Kits Wing Reflector Hood Set, 400W | Buy Now |
iPower 400W CCT 2100K Pressure Sodium HPS Grow Light Bulb Lamp with High PAR Enhanced Red and Orange Spectrums for Plants Growth, Transparent

- Special designed: designed specifically for professional hydroponic plant cultivation. CCT 2,100K, optimized red & orange spectrum and high PAR (photosynthetic active radiation) to stimulate flower growth and enhance fruiting
- High lumen output: 400 watt, 55,000 lumens output, compatible with electronic and magnetic ballast, E39 base
- Extra-low lumen depreciation: maintaining over 90% of initial lumen output after running for 6,500 hours
- Exceptional bulb life: 32,000 hours. New long lasting life with a high lumen output and high power efficiency
- Note: allow 3-5 minutes for full bright. Please wait at least 5 minutes after power shut off before striking again
- Power source type: Corded Electric
iPower GLBULBH400X2 400 Watt High Pressure Sodium Super Grow Light Lamp Full Spectrum HPS Bulb for Plants, 400W, white

- High lumen output: 400w, 55,000 lumens output, compatible with electronic and magnetic ballast, E39 base
- Special designed for plant growth: designed specifically for professional hydroponic plant cultivation. CCT 2,100K, optimized red & orange spectrum and high PAR (photosynthetic active radiation) to stimulate flower growth and enhance fruiting
- Extra-low lumen depreciation: maintaining over 90% of initial lumen output after running for 6,500 hours
- Exceptional bulb life: 32,000 hours. New long lasting life with a high lumen output and high power efficiency
- Note: allow 3-5 minutes for full bright. Please wait at least 5 minutes after power shut off before striking again
Eye Hortilux HX66620 Hortilux Super HPS (High Pressure Sodium) Enhanced Spectrum Lamp, 400W, 400-Watt, Natural

- Spectrum bulb
- Raises your lighting system to a new level of performance
- Lead free
- Item Weight: 0.34 lbs
iPower GLBULBM400 400W Grow Light Bulb Metal Halide MH Conversion Lamp for Plants with High PAR Enhanced Blue and Violet Spectrums CCT 6000K

- High lumen output: 400-watt, 36,000 lumens output, compatible with electronic and magnetic ballast, E39 base
- Special designed for plant growth: CCT 6,000K, enhanced blue & violet spectrum and high PAR (photosynthetic active radiation) to stimulate vegetative growth. Ideal for rapid growth phase of plants. Greatly accelerates flower growth and enhance fruiting
- Extra-low lumen depreciation: maintaining over 90% of initial lumen output after running for 5,000 hours
- Exceptional bulb life: 12,000 hours. New long lasting life with a high lumen output and low energy consumption
- Note: allow 3-5 minutes for full bright. Please wait at least 5 minutes after power shut off before striking again
- Power source type: Corded Electric
iPower GLBULBH400X2V1 400 Watt High Pressure Sodium Full Spectrum Grow Light Lamp HPS Bulb for Plants, 400W, CCT 2100K, Ultra Bright 55,000 Lumens

- Special designed for plant growth: Designed specifically for professional hydroponic plant cultivation. CCT 2,100K, optimized red & orange spectrum and high PAR (photosynthetic active radiation) to stimulate flower growth and enhance fruiting
- High lumen output: 400w, 55,000 lumens output, compatible with electronic and magnetic ballast, E39 base
- Exceptional bulb life: 32,000 hours. New long lasting life with a high lumen output and high power efficiency
- Extra-low lumen depreciation: Maintaining over 90% of initial lumen output after running for 6,500 hours
- Note: Allow 3-5 minutes for full bright. Please wait at least 5 minutes after power shut off before striking again
100W LED Corn Cob Light Bulb,Replace for 400 Watt Metal Halide HPS CFL HID lamp,5000K E39 Mogul Base,for Commercial and Industrial Lighting Bay Light Fixture Warehouse Workshop Gyms

- Super bright:100W LED corn light produce up to 13000 Lumens,Led retrofit 165-200w Fluorescent bulb.Led replacement 400w MH lamp HID HPS bulb.Conventional Standard size old light bulb,single light bulb,regular light bulb,Old Light Fixture,With E26 E27 Medium Screw Socket or E39 E40 Large Mogul Base
- Energy Saving and Long Lifespan:Power consumption is 1/10 of incandescent bulb,2/3 of energy-saving bulb under the same brightness,LED life is 3-4 times longer than MH lamp and HPS bulb.No longer vexed for regular replacement
- Installation and Warranty : GTAREN offers 5 years warranty,Please contact us for replacement if you have any quality problems.Please NOTE:1. The corn lamp has a built-in intelligent drive power supply, and no ballast. Please remove the ballast before power on. 2. The product size is 1.5*9 inch. Please ensure the installation size.
- High Quality: All of our led corn bulbs Passed by CE ROHS FCC,360°Shining – no dead corner,No flicker ,We have many years of experience in exporting to Europe and America.Factory Sells Directly.We provide a free E39 or E26 adapter for each product – just screw in.
- Wide Application:100W Led corn light bulb Working voltage:AC100-277V Great for indoor outdoor Street and large Area Light,garage light,warehouse light barn light,Parking Lot High Bay light patio courtyard garden light shop light work light celling light grow light wall pack Post Top,acorn,low bay shoebox Light fixture etc,Anywhere need bright light with LED replacement bulbs or LED retrofit kits
Hydro Crunch ND911009200 400-Watt High Pressure Sodium HPS Grow Light Bulb Lamp, 400W, Clear

- Hydro Crunch 400W High Pressure Sodium HPS Bulb
- Lumen: 53,500 lumen
- Lamp compatibility: operates on 400W Digital or 400W Magnetic Ballast
- Color temperature: 2,100K
- Use: Flowering & Fruiting
TOPHORT 400 Watts Digital Dimmable Electronic Ballast for HPS MH Grow Light Bulb Lamp (400W, Blue)

- 【Specification】:Rating input current 2.89,Start current 0.96,Operating temperature -20~50,Waterproof level IP65, Net weight <3 KG.
- 【Suitable for MH and HPS】:TOPHORT electronic dimmable ballast compatible with both MH and HPS bulbs,120V and 240V power supplies.
- 【Stable Output Voltage】:High-frequency output results in less power loss (50/60Hz Frequency).
- 【Super-Safety】:TOPHORT digital ballasts are tuned for minimal total harmonic distortion (THD%) 99% Power factors replaceable outset fuse by input terminal for short circuit protection short circuit protection by automatic power shut off for ultimate safety fast lamp ignition by lighting up the bulbs within 1-3mins max.
- 【Guarantee Assurance】:Our TOPHORT HPS grow light ballasts are UL Certified and come with a 2-year warranty against manufacturer defects. If your order is more than one month, please don’t contact Amazon, contact the seller directly, we will provide you with warranty service.
TSEXES 120W LED Corn Cob Bulb,E26/E39 Mogul Base Lamp, 6000K Daylight 18000LM Replacement 400-600 Watt Metal Halide HID HPS CFL, for Garage Warehouse Parking lot High Bay Work Shop Lamp

- 【Super Short and Super Bright Light Bulb】Our 120W LED corn light bulb outputs 18000 lumens, bulb with small size and light material,High brightness.Instant-on,no warm-up,green and eco-friendly,safe to eyes. Omni directional,360° beam angle.
- 【ENERGY SAVING】 The energy consumption of LED bulb is only 1/10 of that of incandescent lamps,which can replace your old 600 watt MH/HPS/HID/CFL perfectly
- 【6000K Cool White Light】 6000K super white contains blue tones, ensures bright and clear light,refreshing and full of vitality.Suitable for warehouses, garages, gas stations, studios, high bay, gyms, factories, supermarkets,workshop, home and more.
- 【50,000 HOURS LONG LIFESPAN】Super stable quality and extended service life.5 times of traditional bulb. It can serve for you up to 23 years with six hours use per day.
- 【EASY INSTALLATION】E26 to E39 Adapter, fit both regular Medium E26 and E39 large mogul screw-in base fixtures.
- 【3 YEARS FREE WARRANTY 】 Our offer 3 years quality service to ensure each customer’s 100% satisfaction.Contact us if any issue arises(free replacement or refund is available)
iPower GLSETX400DHMWING20 Horticulture 400 Watt HPS MH Digital Dimmable Ballast Grow Light System Kits Wing Reflector Hood Set, 400W

- 400W Digital Dimmable Electronic Ballast: Support 120V/240V Input; Dimmable Options: 50%, 75%, 100%; 8 Feet heavy-duty power cord included; Stable power output ensure flicker free light
- 1 x 400W Super HPS bulb 2100K; 1 x 400W MH bulb 6000K; optimized Spectrum and high PAR (photosynthetic active radiation) to promote healthy plant growth and soonest flourish
- 1 x pair of 8-ft adjustable ratchet clip hanger rope: hold up to 150 lbs
- 19-inch Wing Reflector: up to 4′ x 4′ light coverage; Built-in 15 feet heavy duty lamp cord with E39 Ceramic Mogul Socket and standard Hydroponic S-Plug; highly 95% reflective textured German aluminum maximizes the light reflected to the plants
- This system will generate too much heat to be used in an enclosed area without ventilation. Adequate ventilation is required for all iPower grow light systems. We recommend the use of an iPower inline fan
Best 400w hps lamp Buying Guidebooks
It is impossible for a human being to know everything. It is impossible to be an expert in every field. In that scenario, reading a thorough buying guide can spare us from making a costly mistake after purchasing a 400w hps lamp due to a lack of knowledge.
You should not have to be a master on that single product to buy it. Just emphasize on few important things which we are going to discuss in the below. Taking those simple considerations into account may make your buying experience more pleasant and straightforward. Let’s move to the main portion.
Know what you require.
The first step is to identify your needs or requirements. If you aren’t aware of your demands, there’s a big chance you’ll buy the wrong things at the wrong time and waste a lot of money. So, first and foremost, we recommend that you carefully consider your requirements when searching for a 400w hps lamp. Simply make a short list of your requirements. This simple task will lead you to simplifying your purchasing process. Then you will be able to know your prioroties which is the most important thing.
Budget vs Pricing
Budget is one of the most important issue to think about before you decide to buy anything. The product that you decided to buy can be priced by any amount. Basically company’s brand value and the manufaturing costs including raw materials, management, logistics and other operational costs mainly play the key role at the time of pricing a product. When you demand for a higher quality product, you should be prepared enough to spent that level of bucks. Budget is so important for this cause. This universal truth is also effective for your enlisted 400w hps lamp.
“Cut your coat, according to your cloth”- one of the most popular proverb goes in our society. First of all, find out those products as you listed before that you really want. Check the features and costs carefully.With those information, try to compare them inwardly and choose the perfect one. At this point, a big question can raise in your mind that do you have good enough money to spent for this 400w hps lamp? Without any hesitation, go for it if the answer is yes. If not, then go for an alternative which suits your budget and requirements both.
Choose the Perfect Brand
Because of our psychological connections, we are often biased toward these products. This method yields positive effects in some cases and negative results in others. However, there is no way to argue with the concept of relying on well-known brands. When you have enough money in your pocket you can easily make yoiur decesion. But remember, not every brand is good for everything. As a result, you must be extremely cautious while selecting the proper brand for your unique product.
People are classified into two categories. One is completely reliant on a specific brand, while the other is unconcerned. All he needs is the right product for the price he is paying. As we don’t have any idea about your typo.However, there are a few pointers that may be useful to both of you when it comes to selecting the best brand for the best product.
- Make certain that you are well-versed in the Brand.
- Whatever the public is trying to say about this brand.
- Try to calculate the avarage rating score of your choosing products of that brand.
- Compare the features to what others offer.
- Do those features meet your demands?
Once check the Features section.
No matter you purchase a 400w hps lamp from online or offline, the very first thing you need to check its featrures. This little effort will assist you to get a clear picture about the product. You will be able to understand, this product is going to meet your demands or not.
The features part also help us to find out the differences with others very quickly. Then you can compare with similar products through the features. Through this task, one will get a little idea about quality also and make it easier to go ahead toward making our final verdict as well. One will gain a better understanding of quality as a result of this work, which will make it easier for us to reach a final decision. One will have a better understanding of quality as a result of this work, making it easier to move forward with our final decision. One will develop a greater understanding of quality in terms of this task, which also will make it easier for anyone to reach the final decision. One will gain a better understanding of quality as a result of this task, making it easier to reach our final decision. By doing this simple task, you may get idea about the quality which will make it easier to take the final decision. Your decision making will be far easier when you will do this simple task because of getting idea about the quality after doing so. If you do so, it will be much easier to reach to the final decision because you will be able to understand about the quality here.
Check the Advantages and Risks
Every product has its own advantages and disadvantages. Checking out carefully is our responsibility before we buy them. So, keep yourself cool and figure out the negatives you expected from that 400w hps lamp. Maybe it was made for you by another manufacturer. Just don’t be too lazy to compare yourself to them before making a final decision.
Pros and Cons sections can be found on most websites. Carefully read that section. If you have any further questions, simply contact them via email or phone.
Quality and Endurance
Color, Style, Performance, Materials, and, most importantly, Durability are all components of quality. Before buying anything, you must think about those facts which ensure the quality. That is the thing you are paying for. Isn’t it? Do you think this 400w hps lamp deserves the inevestment that you want to do for it? Only quality can reply this question.
Know About Warranties and Return Policies
Hundreds of companies are making products everyday. Higher quality are being maintained by many of them. To attract buyers like us, they make creative advertise too. Everything is fine. But then appears the Warranty and After Sales Service. That thing makes the difference and most of the time, that is really a big deal.
If you forget to check these important facts like warranty, gurantee and return policies, it is going to be a huge mistake. Even after purchasing the highest quality product, anything can happen. We should not hope to last anything forever. But you have paid for that 400w hps lamp and you should get a minimum return of value because you deserve that. That’s why you need to be more careful about checking policies. You may get some companies who are so clever that they try to make people puzzled with their obscure and mystical policies. Never be hesitated to ask their delegate about the facts which are unintelligible and be clear every single thing.
To use FAQs and Customer Reviews helps to simplify your task.
Checking customer reviews and FAQ answers are so savior of time that you can’t understand unless you try it. Usually when people like me and you asked few common questions frequently about a product, then it is called Frequently Asked Questions or FAQ. On the other hand, you will get a real life experience through the customer reviews in which they share their sotries about the product.
You will get idea of both by checking out those two things. There you will get some answers which you might not even ask. Your understanding ability of percieving about the usefulness of the 400w hps lamp will be more sharp.
Afterwards, You should consider the value that the 400w hps lamp providing you is viable enough against the price you paying for it. Does it make you pleased or not? Does your desires be fullfilled with that? We think this is the most important part.
Hope this article will come handy for you to recognize and purchase the best 400w hps lamp in the market. If you find this a little bit of useful, then nobody can be happy more than us. At the end of the day, your satisfaction matters most to us.