Will these be ok to replace sunmaster sl400w.u46.dsp. part#: 10035. 400watt dual spectrum grow lamp?

Hi yes... you can replace any bulb as long as it's a 400 watts single end screwing type ..hps red spectrum or dual spectrum bulbs.

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400W Grolux HPS Lamp

Product ID: 48923580

⚡10% boost in photosynthesis efficiency

🌈Enhanced red & blue spectrum

💡55,000 lumens ultra-bright output

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€ 51.20

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Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌿 Grow like a pro with the brightest spectrum boost in the game!

SPECTRUM PERFECTED - Optimized red and blue light for vibrant vegetative and flowering growth.
UNMATCHED LUMINOSITY - Illuminate your grow space with a blazing 55,000 lumens powerhouse.
PHOTOSYNTHESIS AMPLIFIED - Delivers 10% higher photosynthesis flux than standard HPS bulbs—grow smarter, not harder.
HEAT EFFICIENT BRILLIANCE - Bright, intense light with minimal heat output keeps your environment balanced.
PLUG PLAY COMPATIBILITY - Pairs seamlessly with Lumii Digita 400W Ballast for peak performance.

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.

Specifications

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

Reviews

C**G

Nice and powerful output

A nice red 2000 K colour light. Produces a very bright light and not too much heat.

15.09.2019

N**L

As described.

Good for a small area.

19.01.2023

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

5.07.2016

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.

11.01.2016

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.

9.04.2014

I**1

Four Stars

WELL IT WORKS OK HOPE IT LASTS

8.10.2014

C**D

Thank u

Thank you sir pleasure will be back

21.12.2016

A**R

Rattle

The bulb rattles continuously , when in operation. shame.

13.01.2019

A**.

No era para mi pero me dicen que no va como debería....

7.01.2019

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

2.10.2017

A**R

Malísima, no ha durado ni un cultivo

21.01.2019

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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