9.4
GRUOTVSZAK Grow lights
These high-pressure sodium bulbs are designed for the flowering stage of plant growth. The double-ended 1000W bulbs provide high intensity for flower production
GRUOTVSZAK: 1 light listed here
9.4
High intensity output
These 1000W bulbs deliver 2150umol for powerful light penetration.
Double ended design
The DE bulb configuration ensures stable and efficient performance.
Flowering specialization
High pressure sodium light is optimized for the flowering phase.
Pluses and minuses
Pulled from 2 analyzed reviews
What works
- Fast shipping 2
- Bright light output 1
- Easy setup 1
- High yields 1
- Padded packaging 1
- Reliable performance 1
- Top brand quality 1
First-hand notes
The 2150umol output from these HPS bulbs is exactly what my flowers needed.
The double ended design fits perfectly in my existing 1000W fixtures.
Buying these in a 4-pack was very convenient for my grow room.
Flowering Light Specifications
These listings focus on 1000W HPS double-ended bulbs sold in 4-packs. The technical specs emphasize a 2150umol output for high-pressure sodium systems.
- 1000W HPS bulbs
- Double ended (DE) base
- 2150umol light output
- High pressure sodium
- Flowering stage focus
- 4-pack bulb sets


Current models
GRUOTVSZAK light in this range cover Red, Lights for flowers, Grow light bulbs, Red and blue grow lights.
Construction
These high-pressure sodium bulbs are designed for the flowering stage of plant growth. The double-ended 1000W bulbs provide high intensity for flower production
Where they fit
These GRUOTVSZAK light line up with Red, Lights for flowers, Grow light bulbs, Red and blue grow lights.
Worth comparing
Use Red, Lights for flowers, Grow light bulbs, Red and blue grow lights to tell one GRUOTVSZAK model from the next.
GRUOTVSZAK Questions
What type of bulbs are these?
These are 1000W High Pressure Sodium (HPS) bulbs.
What is the bulb connection type?
These are double ended (DE) grow light bulbs.
What growth stage are these for?
These bulbs are designed for the flowering stage.
How many bulbs come in a set?
These are sold in a 4-pack.