PHANTOM Cultivar GL250 LED, 250W Grow Light (10' 110-120V Plug)

Compact 250W Fixture with Onboard Spectrum Control

The PHANTOM Cultivar GL250 LED is a compact, IP65-rated 250W fixture built around a premium aluminum unibody heatsink for long-term diode performance and minimal output degradation over time.

An onboard Master-Apprentice Dimmer (MAD) knob and Two-Step Spectrum (TSS) switch put spectrum and intensity control directly on the fixture, without requiring additional controller hardware.

Key Features & Benefits

• 250W Rated Input Power — Delivers 641 µmol/s photon flux (PBAR 280-800nm) and 625 µmol/s (PAR 400-700nm).
• 2.56 µmol/J Efficacy — Reflects the fixture's output per watt of input power.
• Aluminum Unibody Heatsink — Supports longer diode life and less output degradation over time.
• MAD Dimmer Knob — Controls up to four daisy-chained GL250 fixtures via included RJ12 cords, with dimming from 40-100% output.
• Two-Step Spectrum Switch — Toggles between a full-spectrum FLOWER mode and a red-reduced VEG mode.
• IP65-Rated and DLC Hort QPL Eligible — Sealed against dust and humidity, and eligible for utility rebates where offered.
• Compact Footprint — Roughly 1 x 1.5 ft with a 2.3-inch profile, weighing 11 lbs.
• Standard 120V Plug — Includes a 10-foot cord for standard U.S. 120Vac outlets.

Who Should Use the GL250

The GL250 suits growers who want a single, compact fixture with onboard dimming and spectrum control, without needing to add a separate external controller.

Daisy-Chaining and Control Options

Up to four GL250 fixtures can be linked together and controlled from a single MAD dimmer knob using the included RJ12 control cables. Growers who prefer external control can also connect a compatible 0-10V controller. A pair of ratcheting hangers ships in the box for immediate setup.

Frequently Asked Questions

What is the rated efficacy of the GL250?

2.56 µmol/J, with 250W of rated input power.

How many fixtures can I control with one dimmer?

Up to four GL250 fixtures can be daisy-chained from a single MAD dimmer knob using RJ12 cords.

What does the spectrum switch do?

It toggles between a full-spectrum FLOWER mode and a red-reduced VEG mode for vegetative growth.

What voltage and cord does it use?

Standard U.S. 120Vac input with a 10-foot cord.

Is it eligible for utility rebates?

It is DLC Hort QPL listed and eligible in regions that offer such rebates.