PHANTOM Cultivar GL250 250W S4
Best high-efficiency LED for serious indoor home cultivators.
Elevate your cultivation with the PHANTOM Cultivar GL250 LED, a powerful 250W grow light designed for serious growers. Its compact and robust fixture boasts a premium aluminum heatsink for extended diode life and consistent output. With an impressive 2.6 µMol/J efficacy, it ensures efficient growth. Take full control with the integrated Master-Apprentice Dimmer knob (MAD) and the Two-Step Spectrum switch (TSS) for seamless VEG and FLOWER mode adjustments. This IP65-rated light includes hangers for quick setup, making it ideal for diverse growing applications.
$239.39
Owner Satisfaction
4.5
/ 5
Category Rank
3901
/ 11143
#3901 in Lamps
Price vs Category Average
-60%
Below average
Rated Wattage
250
/ W
Who it's for
- Serious hobbyists prioritizing long-term equipment reliability
- Indoor gardeners seeking natural sunlight results for their plants
- Small-scale growers needing high intensity in tight spaces
Who should skip it
- Budget-conscious users wanting to avoid recurring maintenance costs
- Commercial cultivators managing large-scale growing operations
- Growers working in spaces with limited ventilation capacity
Performance breakdown
Light Efficacy
High-efficiency output ensures maximum growth potential while keeping energy costs down.
Build Durability
Rugged aluminum heatsink and IP65 rating handle harsh, humid grow environments.
Spectrum Versatility
Dedicated VEG and FLOWER modes provide precise light recipes for every stage.
Control Flexibility
Master-Apprentice dimming and external controller compatibility offer professional-grade lighting management.
Installation Ease
Included ratcheting hangers make setup quick and straightforward for any grower.
Thermal Management
Premium heatsink design effectively dissipates heat to extend vital diode lifespan.
Key Specs
Rated Wattage
250W
Efficacy
2.56 µmol/J
Photon Flux (PBAR)
641 µmol/s
Input Voltage
110-120Vac
Dimensions (Unboxed)
18.6 x 12.6 x 3 inches
Weight (Unboxed)
11 lbs
Rated Life Hours
50000
Ingress Protection Rating
True IP65
Features
- Master-Apprentice Dimmer for multi-fixture control
- Two-Step Spectrum switch for VEG/FLOWER modes
- Premium aluminum heatsink for longevity
- Dimmable output from 40% to 100%
- Includes ratcheting hangers for easy installation
- IP65-rated for dust and water resistance
- Compatible with 0-10v external controllers
What customers say
Customers consistently praise the PHANTOM Cultivar GL250 for its exceptional reliability and robust build quality. Many reviewers highlight the consistent light output over long periods, noting that the unit performs exactly as expected without fail. This dependability makes it a favorite among serious growers who prioritize stable environmental control. While the initial investment is noted, the long term performance solidifies its strong value proposition.
Know before you buy
The Two-Step Spectrum switch (TSS) allows you to toggle between light spectrums optimized for different growth stages. The VEG mode provides a blue-heavy spectrum to encourage compact, leafy growth, while the FLOWER mode shifts to a red-heavy spectrum to support bud development and yield.
Yes, the fixture features a Master-Apprentice Dimmer (MAD) knob, which allows you to daisy-chain multiple lights. When linked, the master unit controls the intensity of all connected apprentice units simultaneously.
Absolutely. The GL250 carries an IP65 rating, meaning it is fully protected against dust ingress and low-pressure water jets. This makes it safe and durable for use in humid indoor cultivation spaces.
No, you can manually adjust the intensity from 40% to 100% using the integrated dimmer knob on the fixture. However, it is also compatible with external 0-10V controllers if you prefer automated or centralized lighting management.
The PHANTOM GL250 is rated for 50,000 hours of operation. The inclusion of a premium aluminum heatsink helps dissipate heat efficiently, which is critical for maintaining that diode longevity over time.
Yes, the package includes ratcheting hangers for a quick and secure setup. Since it is a plug-in fixture, you can simply hang it and connect it to a standard 110-120Vac power source.
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