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🌿 Grow like a pro with the brightest spectrum boost in the game!
The Sylvania 400W Grolux HPS Lamp is a high-output horticultural lighting solution delivering 55,000 lumens with an enhanced red and blue spectrum tailored for all growth stages. Offering 10% increased photosynthesis efficiency over standard HPS bulbs, it’s engineered for greenhouse and indoor growers seeking superior plant development. Best used with a Lumii Digita 400W Ballast, this lamp combines intense PAR radiation and a 2050K color temperature to maximize crop yield while maintaining low heat emission.
| ASIN | B00DQAC4S2 |
| Best Sellers Rank | 96,795 in Lighting ( See Top 100 in Lighting ) 1,857 in Fluorescent & Neon Tubes |
| Customer Reviews | 3.7 3.7 out of 5 stars (28) |
| Date First Available | 6 Feb. 2012 |
| Item display weight | 0.1 Kilograms |
| Item model number | gro-lux |
| Manufacturer | Hydrogarden |
| Part number | S400-SY58 |
| Product Dimensions | 29.21 x 4.8 x 29.21 cm; 190 g |
C**G
Nice and powerful output
A nice red 2000 K colour light. Produces a very bright light and not too much heat.
N**L
As described.
Good for a small area.
K**S
first one sent out was broke and didn't work sent ...
first one sent out was broke and didn't work sent replacement straight away 2nd one sent out worked worked for 12 hours before dying wont attempt a 3rd
M**S
the Sylvania product testing dept is fantastic, they do not dispatch trash and have their ...
laughs at sunmaster bulbs and out performs them entirely. the Sylvania product testing dept is fantastic, they do not dispatch trash and have their qa dept in the country of manufacture, not india.
S**N
Smashed
I received my bulb in timely order; It had been placed loose in a box with a heavy digital ballast, there was no protective packaging and as a result it was smashed.
I**1
Four Stars
WELL IT WORKS OK HOPE IT LASTS
C**D
Thank u
Thank you sir pleasure will be back
A**R
Rattle
The bulb rattles continuously , when in operation. shame.
A**.
No era para mi pero me dicen que no va como debería....
B**Z
La lámpara ya me llegó fundida. En este caso, desaconsejo su compra, ya que es mejor probarla en un establecimiento físico. Mala compra
A**R
Malísima, no ha durado ni un cultivo
Trustpilot
4 days ago
2 days ago