
GRUOTVSZAK
2150umol HPS 1000W DE Grow Light Bulb High Pressure Sodium Double Ended
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Highlights
- HIGH PAR PPF: Output over 2100μmol/s, superb choice for HPS lover
- WELL-TUNED SPECTRUM: Perform the ideal 1:8 Blue/Red PPF output ratio,triggers the strong flowering boost
- SAFE and COMPATIBLE: Standard HPS Double Ended design, fits all suitable DE fixtures
- LONG LIFE: Premium 95% output maintanence for 8000 hours efficient grow,quality guaranteed
- WARM UP and COOL DOWN: 7 mins warm up time to achieve working tempreture, stands at least 7 mins to cool down after use
Why You'll Love It
- High light output over 2100 umol/s delivers strong intensity for demanding indoor setups
- Tuned 1:8 blue-to-red spectrum focuses energy to trigger and boost plant flowering
- Standard double-ended format fits across compatible DE fixtures without custom hardware
- Maintains 95 percent of light output across 8000 hours of regular operation
- Clear operating cycles require a 7-minute warmup and a 7-minute cooldown time
Pros
- +High output over 2100 umol/s
- +Flowering-focused 1:8 blue-red spectrum
- +Standard double-ended fixture compatibility
- +Retains 95 percent output for 8000 hours
Cons
- -Requires 7 minutes to reach working temperature
- -Needs at least 7 minutes to cool down after use
Detailed Review
The GRUOTVSZAK 1000W DE HPS Grow Light Bulb provides dedicated high-intensity illumination for indoor growers running double-ended fixtures. Designed specifically for flowering stages, it gives plants the intense light levels and spectrum balance needed to support dense floral development.
This bulb delivers an output exceeding 2100 umol/s, ensuring substantial light penetration throughout your canopy. Its spectrum is tuned to a 1:8 blue-to-red ratio, targeting the red wavelengths that promote flowering. With a standard double-ended profile, it drops directly into any suitable DE reflector or fixture without specialized adapters.
Long-term output stability is a key focus, maintaining 95 percent of its initial light output across 8000 hours of use. In daily operation, the bulb requires a 7-minute warmup period to hit full operating temperature. After powering off, it also needs at least 7 minutes of cooling time before handling or restarting.
Verdict: The GRUOTVSZAK 1000W DE HPS Bulb is a strong match for growers needing dependable high-output lighting for the bloom cycle. It fits any standard double-ended fixture and provides sustained performance across long growing cycles.
Specifications
- Wattage: 1000W
- Lamp Type: High Pressure Sodium (HPS) Double Ended (DE)
- PAR PPF Output: Over 2100 umol/s (2150 umol rating)
- Spectrum Ratio: 1:8 Blue/Red PPF
- Output Maintenance: 95% for 8000 hours
- Warmup Time: 7 minutes
- Cooldown Time: At least 7 minutes
Who Should Buy It
A great fit if you:
- Use standard double-ended grow light fixtures.
- Need a dedicated red-heavy spectrum to support plant flowering.
- Require high light intensity above 2100 umol/s for your setup.
- Want long-term output stability rated for 8000 hours.
Consider something else if you:
- Use single-ended (SE) or non-HPS lighting fixtures.
- Need an instant-on or instant-off light source without warmup cycles.
FAQ
What fixtures work with this bulb?
It features a standard double-ended HPS design that fits all suitable DE fixtures.
What is the blue to red ratio of the light output?
The bulb produces a tuned 1:8 blue-to-red PPF output ratio intended to boost flowering.
How long does the bulb take to warm up and cool down?
It takes 7 minutes to reach its working temperature and needs at least 7 minutes to cool down after being turned off.
Product Details
| Brand | GRUOTVSZAK |
| ASIN | B0BG57BBY3 |






