SunMaster Dual Lamp 250W Bulb

SunMaster Dual Lamp 250 W bulb.

The SunMaster Dual Lamp 250W combines the classic efficiency of high-pressure sodium with a mixed spectrum, allowing you to work from vegetative to flowering stages without changing lamps. The dominant color is warm (red/orange/yellow) to promote bud fattening and resin production , while a touch of blue light keeps internodes compact and leaves active during growth.

In 60–100 cm grow tents and compact rooms, the flux of a 250 W HPS offers homogeneous coverage with sufficient penetration into moderately tall canopies, especially if the reflector distributes light evenly.

It's easy to use: a 250W magnetic or electronic ballast, E40 socket, 18/6 photoperiod in vegetative growth and 12/12 in flowering, plus adequate ventilation to stabilize leaf temperature and VPD. Compared to dedicated lamps (MH for growth and HPS for flowering), this hybrid system reduces equipment changes and simplifies logistics without sacrificing good flower density in the final stage of the cycle.

A modern strategy involves complementing the central focus with low-power perimeter LED grow lights : the perimeter gains coverage and homogeneity, the center maintains the warm punch typical of sodium, and every centimeter of the canopy is better utilized.

A basic maintenance plan—periodic cleaning of the reflector, checking connections, noting the installation date and replacing it when lumens decline—helps sustain performance for several runs.

For heat-sensitive environments, a cooltube or ventilated reflector is useful, with appropriately sized extraction and gentle recirculation that moves air between canopies without damaging the tips.

In cannabis cultivation , this bulb performs especially well in SOG of low plants and in SCROG with a tight mesh, where the warm lighting reaches the middle layers and the secondary flowers increase in size.

With a balanced nutritional program, controlled irrigation and stable climate, the set delivers compact tails, well-defined pistils and consistent aromatic profiles, maintaining moderate consumption and easy integration into existing facilities.

Indoor growing SunMaster Dual Lamp 250W bulb.

Versatility is key in indoor growing . This lamp allows you to germinate, root cuttings, pre-grow, and flower all under the same light source. The mixed spectrum reduces unwanted stretching during the vegetative stage and accelerates the generative phase with effective warm light. Perfect for starter grow tents, auxiliary spaces, or rooms where controlling energy consumption and temperature is important.

What is the SunMaster Dual Lamp 250W bulb used for?

It covers the entire cycle with a single lamp: vigorous vegetative growth and abundant flowering . It provides red light for buds, calyxes, and bud development, with enough blue light to maintain a compact structure. A practical solution for those seeking operational simplicity in cannabis cultivation with medium-sized plants .

Indoor growing tool SunMaster Dual Lamp 250W bulb.

• Technology : Mixed Spectrum HPS.
• Power : 250 W | Application : growth and flowering.
• Socket : E40 | Compatibility : 250W magnetic or electronic ballast.
• Recommended coverage : 60×60 to 80×80 cm closets; compact rooms with moderately tall plants.
• Synergies : Excellent with LED grow light perimeters that improve lateral coverage.
• Maintenance : cleaning the reflector, monitoring usage hours, and replacing it when the flow decreases.

How do I use the SunMaster Dual Lamp 250W bulb?

1. Disconnect the power supply, let it cool and screw the lamp into the E40 socket, holding it by the base without touching the glass.
2. Connect to 250W ballast and check grounding, fuses and wiring gauge.
3. Adjust photoperiod: 18/6 in vegetative; 12/12 in flowering.
4. Start with a distance of 35–45 cm from the canopy; gradually approach while monitoring leaf temperature and signs of stress.
5. Stabilize climate with extraction and oscillating ventilation; keep VPD within range and avoid hot spots.
6. Record the installation date and plan for replacement when the light output shows noticeable depreciation.

Price of SunMaster Dual Lamp 250W bulb.

A proposal with an excellent price-performance ratio for projects requiring efficiency and simplicity. A controlled investment that reduces duplicate purchases (HM+HPS) and delivers solid results in limited square footage.

Where can I buy SunMaster Dual Lamp 250W bulb online?

Available at Hydroponics Blanes , a trusted grow shop in Spain with discreet 24/48h shipping . Extensive catalog of HPS, CMH/LEC and LED grow lights , plus reflectors, ballasts, timers and controllers to complete any setup, with expert technical support.

Those seeking practicality and performance in confined spaces will find the SunMaster Dual Lamp 250W bulb an ally for complete cycles: effective mixed light, moderate consumption and easy handling.

At Hydroponics Blanes, you can expect ready-to-assemble kits, personalized advice, and discreet shipping throughout the peninsula, with combinations that integrate 250W HPS and perimeter LED grow lights to make the most of every centimeter of the garden in indoor cannabis cultivation.