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Ushio Hilux GRO CMH 315W 4200K Grow Lamp — main product image
Ushio Hilux GRO CMH 315W 4200K Grow Lamp
Ushio Hilux GRO CMH 315W 4200K Grow Lamp
Ushio Hilux GRO CMH 315W 4200K Grow Lamp
Ushio

Ushio Hilux GRO CMH 315W 4200K Grow Lamp

Ushio Hilux GRO CMH 315W 4200K delivers optimized full-spectrum light engineered for vigorous vegetative plant growth.

$79.99*
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*Price sourced from Amazon.com. Last updated:Aug 28, 2026.Price and availability are subject to change — details.

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Overview

The Ushio Hilux GRO CMH 315W 4200K is a ceramic metal halide grow lamp engineered to deliver a carefully tuned light spectrum that closely mimics natural sunlight in the blue-white range. Unlike conventional metal halide or high-pressure sodium lamps, CMH technology produces a broader spectral output that includes UV and far-red wavelengths beneficial to photosynthesis, resulting in healthier, more compact plant growth during the vegetative stage. The 4200K color temperature makes this lamp particularly effective for promoting leaf development, root establishment, and overall structural vigor.

Designed for use in controlled indoor growing environments, the Hilux GRO CMH can serve as a primary light source in smaller grow spaces or as a spectral supplement alongside existing HPS lighting to fill in wavelength gaps. At 315 watts, it operates more efficiently than many higher-wattage alternatives, reducing heat output and energy consumption while still delivering strong photosynthetically active radiation. The lamp requires a compatible 315W CMH ballast for operation and fits into standard CMH reflector setups, making it a practical upgrade for growers looking to improve light quality without overhauling their entire system.

Key Features

Advanced Ceramic Technology: Features Ushio HiLux Ceramic Metal Halide technology with 315W power output and 4200K color temperature, delivering superior spectral distribution specifically optimized for photosynthetic efficiency and robust plant development throughout all growth stages

Enhanced Blue Spectrum: Provides exceptional blue light output that promotes healthy vegetative growth, stronger stems, compact plant structure, and increased robustness, making it ideal for both standalone use and HPS supplementation in professional growing environments

Optimized PAR Output: Delivers high ceramic mol output concentrated within the PAR spectral range (photosynthetic active radiation), ensuring maximum light energy is converted into usable wavelengths that directly fuel plant photosynthesis and accelerate growth rates

Energy Efficient Performance: Combines low energy consumption with high mol output to provide exceptional photosynthetic efficiency, reducing operational costs while maintaining optimal light levels for vigorous plant growth and development

Long-Lasting Durability: Engineered with extended average lamp life that delivers consistent performance over time, providing economical operation through reduced replacement frequency and sustained light quality throughout the lamp's lifespan

Specifications

Type
Ceramic Metal Halide (CMH)
Wattage
315W
Color Temperature
4200K
Brand
Ushio
Model
Hilux GRO CMH
Application
Plant Growth, HPS Supplementation

Frequently Asked Questions

The 4200K version produces a cooler, blue-weighted spectrum ideal for vegetative growth stages, while the 3000K version emits a warmer spectrum better suited for flowering and fruiting phases.
Yes, the Ushio Hilux GRO CMH 4200K is designed to work as a standalone grow lamp or as a supplement to HPS systems, adding spectral wavelengths that HPS lamps lack.
This lamp requires a compatible 315W CMH/LEC ballast. It is not compatible with standard HPS or MH ballasts.
Ceramic metal halide lamps like the Hilux GRO generally maintain useful output for approximately 10,000 to 20,000 hours, though spectral output may shift over time, so periodic replacement is recommended for optimal growth results.

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