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🌱 Light up your grow game with power and precision!
The HPS 400W Grow Light Bulb E39 delivers a powerful 750μmol/s PAR output and 55,000 lumens brightness with a 2000K red spectrum optimized for flowering. Compatible with standard E39 bases and both electronic and magnetic ballasts, it offers over 28,000 hours of reliable, long-lasting performance. This 2-pack is designed to maximize bloom size and yield, making it a top choice for serious indoor growers seeking proven high-pressure sodium technology.
| ASIN | B0F8B6WCB2 |
| Average Life | 28000 Hours |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #34,293 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #29 in Plant Growing Light Bulbs |
| Brand | GRUOTVSZAK |
| Brightness | 55000 Lumen |
| Bulb Base | E39 |
| Bulb Shape Size | T |
| Color | Transparent |
| Color Temperature | 2000 Kelvin |
| Control Method | Push Button |
| Customer Reviews | 4.4 4.4 out of 5 stars (101) |
| Date First Available | May 12, 2025 |
| Efficiency | High Efficiency |
| Global Trade Identification Number | 06974568040973 |
| Incandescent Equivalent Wattage | 1000 Watts |
| Included Components | bulb |
| Indoor/Outdoor Usage | Indoor |
| Item Weight | 15.2 ounces |
| Item model number | XH-HPS400W-2P |
| Light Color | Yellow |
| Light Output Maximum | 55000 Lumens |
| Light Source Type | HID |
| Light Source Wattage | 400 Watts |
| Light Type | HPS |
| Manufacturer | GRUOTVSZAK |
| Material | Glass |
| Model Name | HPS400W |
| Number of Items | 2 |
| Package Dimensions | 13.19 x 7.4 x 2.83 inches |
| Part Number | HPS400W-2P |
| Power Consumption | 400 Watts |
| Power Source | Corded Electric |
| Shape | Tubular(T) |
| Special Feature | Long Lasting |
| Special Features | Long Lasting |
| Specific Uses For Product | Plant Growing |
| Style | HPS 400W E39 2 PACK |
| Unit Count | 2.0 Count |
| Voltage | 230 Volts |
| Wattage | 400 Watts |
| White Brightness | 55000 Lumens |
F**S
Good Eye Hortilux replacement
Plants are responding well. I used Eye Hortilux but they qult making them. Everyone wants you to go to leds. I don't want to yet because it's mostly the high dollar leds that provide a good harvest. Cheaper leds need replaced every couple years. Must be bright enough and the light must be of good quality because my plants are doing a lot better than I initially thought they would.
J**T
Excellent Product
Excellent product very well packaged and a fast delivery time. Very good overall and will buy again.
T**C
Best bang for the buck
Been a grower for 30 years, ive used em all. This bulb dollar for dollar at 90,000 lumens and my plants have reacted best to these exact bulbs for past 3 years and 7 grows. I use 1 in a susnsystems 6 inch vented hood with glass shield. My quiet inline fan from vivosun sucks the heat right out of that hood. Hps is and always will be far superior to LED lamps that turn on and off so many times per second, we cant see it but the plants can amd you get these ridiculous woody stems at 4 to 5 weeks in the grow stage. Ive had it happen twice and when I grow I cant afford to have problems. Thats why I go hps every time and NEVER have problems. Any questions
D**T
Works as suggested.
So far so good. It seems worth the investment. We have to see after harvest just how effective it was. So far though, it seems to be a great investment.
M**N
Great product
Great product
S**S
Bright
Wprked great. Nice dense flowers.
I**.
Not bright
Lasted two weeks. They would not take back
C**G
Well Made
Very bright. I appreciate the sturdy packaging.
T**S
It works, just make sure you already have a 600watt ballast
Trustpilot
4 days ago
3 weeks ago