SYLVANIA HSI-BRITELUX 400W Bulb

Buy HSI-BRITELUX 400W Bulb. SYLVANIA

The SYLVANIA HSI-BRITELUX family performs exceptionally well during growth phases, where a cool, homogeneous spectrum makes all the difference in leaf density and vigor. At 400W , this lamp offers high lumen output with slow depreciation, allowing for multiple seasons without sudden drops in lumen output when a maintenance plan is in place.

The white spectrum promotes chlorophyll synthesis , branching, and the formation of uniform canopies, creating an ideal canopy for switching to 12/12 with warm HPS or LED grow lights geared towards flowering.

It fits in an E40 socket, works with compatible 400W metal halide ballasts and works perfectly with open or cooled reflectors.

In 100–120 cm grow tents, a distance of 40–60 cm from the canopy maintains leaf temperature within range. HSI technology uses every watt with great efficiency; in well-managed spaces, it can compete with higher-wattage HPS setups during the vegetative stage, reducing electricity consumption without sacrificing growth rate.

A key detail: avoid contact of the bulb with grease or dust, clean the reflector regularly and note the installation date to decide on time for replacement.

Combined with proper extraction, air recirculation and balanced nutrition, the HSI-BRITELUX 400 W SYLVANIA bulb prepares compact, green plants ready for explosive flowering in cannabis cultivation .

Indoor grow light bulb HSI-BRITELUX 400 W. SYLVANIA

In indoor cultivation , the coolness helps control stretching and fill nets in SCROG systems or compact cuttings in SOG . The canopy receives homogeneous light, promoting strong roots, firm stems, and broad leaves, optimizing the light-to-canopy ratio in grow tents and medium-sized rooms.

What is the purpose of the HSI-BRITELUX 400 W SYLVANIA light bulb?

It promotes rapid growth in cannabis plants and other demanding species. The white spectrum encourages leaf mass , root development , and short internodes , creating a solid foundation for dense flowering. Excellent for maintaining mother plants, rooting cuttings, and pre-growth before changing the photoperiod.

Indoor growing tool: HSI-BRITELUX 400W bulb. SYLVANIA

• Technology : HSI halides with a white spectrum oriented towards vegetative growth.
• Power : 400 W | Socket : E40 .
• Application : growth, mothers, cuttings and pre-flowering in cannabis cultivation .
• Performance : slow depreciation of cash flow; possibility of linking 4–5 harvests with adequate maintenance.
• Efficiency : optimized consumption; in vegetative mode it can be compared to higher power HPS in well-fitted spaces.
• Integration : perfect in HSI+HPS or HSI+ LED grow lights hybrids.
• Good practices : avoid touching the bulb, clean the reflector, record usage to plan for replacement.

How do I use the HSI-BRITELUX 400W SYLVANIA bulb?

1. Turn off the power and let the equipment cool down before handling.
2. Screw the HSI-BRITELUX 400 W SYLVANIA bulb into an E40 socket, holding it by the base; no contact with the glass.
3. Connect to the 400W ballast compatible with metal halide lamps and check protections and grounding.
4. Adjust photoperiod to 18/6 (or 20/4 if accelerated growth is desired), maintaining extraction and fans to stabilize VPD.
5. Start 40–60 cm from the canopy and gradually approach, monitoring leaf temperature and crop response.
6. Plan to transition to a warm source for flowering (HPS or red spectrum LED) when the structure is ready.

Price of HSI-BRITELUX 400W light bulb. SYLVANIA

An excellent value option for efficient vegetative growth in medium-sized grow rooms. It allows for the configuration of economical and stable kits, reducing energy consumption compared to more powerful alternatives during this phase.

Where can I buy the HSI-BRITELUX 400W SYLVANIA light bulb online?

Available at Hydroponics Blanes , a trusted Grow Shop and Grow Shop in Spain with discreet 24/48h shipping . Complete lighting catalog: metal halide, HPS and LED grow lights , plus ballasts, reflectors and accessories to complete every setup.

Those looking for a compact and intense green vegetative growth will find in the HSI-BRITELUX 400 W. SYLVANIA bulb an ally to prepare a uniform and resistant canopy.

The white spectrum accelerates growth, strengthens stems and generates vigorous leaves, ready for a jump to flowering with HPS coverage or LED grow lights .

At Hydroponics Blanes, you can expect expert advice, ready-to-assemble kits, and discreet shipping to make every indoor cannabis cultivation project easier.