When choosing between the RX-PAR38 and RX-PAR30 grow lights from Koray Lighting, growers often wonder what sets these two models apart. Both are part of Koray’s professional indoor plant lighting series, designed for different cultivation scenarios and space requirements.
Physical Size and Design Differences
The most obvious difference lies in their physical dimensions. The RX-PAR38 features a larger PAR38 form factor with a 38mm diameter body, typically available in wattages from 30W to 60W. This larger size allows for more LED chips and higher power output, making it suitable for covering larger areas or penetrating deeper into plant canopies.
The RX-PAR30, on the other hand, uses a compact PAR30 design with a 30mm diameter. It’s typically offered in 20W to 30W configurations, making it more space-efficient and ideal for smaller grow tents, shelves, or desktop setups where space is at a premium.
Power and Coverage Area
Due to its larger size, the RX-PAR38 can accommodate higher wattage (up to 60W), delivering greater PPFD (Photosynthetic Photon Flux Density) at various distances. At 0.3 meters, the RX-PAR38-60D model can deliver PPFD values exceeding 800 μmol/m²/s, with coverage diameters of 0.6-0.8 meters depending on the beam angle chosen.
The RX-PAR30, while lower in power (20-30W), still provides impressive performance for its size. At 0.3 meters, it delivers PPFD values of 400-600 μmol/m²/s, with coverage diameters of 0.4-0.6 meters. This makes it perfect for small to medium-sized plants or concentrated growing areas.
Beam Angle Options
Both series offer multiple beam angle options to suit different growing needs. The RX-PAR38 is available in 60° (standard), 90° (wide), and 120° (flood) beam angles. The 60° version provides deeper penetration for tall plants like tomatoes or cannabis, while the 90° and 120° versions offer wider coverage for low-canopy crops like lettuce or herbs.
The RX-PAR30 typically comes in 60° and 90° beam angles, optimized for its smaller form factor. The 60° version is ideal for focused lighting on individual plants, while the 90° version provides broader coverage for shelf growing.
Spectrum Options
Both the RX-PAR38 and RX-PAR30 are available in Koray’s popular spectrum variants:
- S85/S93: Full-spectrum white light with high CRI (Color Rendering Index), ideal for ornamental plants, succulents, and general-purpose growing. The high CRI makes plants look natural and vibrant under the light.
- K6: Enhanced red spectrum specifically designed for flowering plants, fruiting crops, and carnivorous plants like Venus flytraps. The additional red wavelengths promote blooming and fruit development.
Waterproof Rating and Durability
Both series feature IP65 waterproof ratings, meaning they can withstand splashing water and high humidity environments. This makes them suitable for hydroponic systems, humid grow rooms, and even outdoor covered installations. The aluminum heat sink design ensures excellent thermal management, extending the LED lifespan to 35,000+ hours.
Installation and Compatibility
Both models use standard E27 screw bases, making them compatible with existing light sockets, lamp holders, and fixture systems. They can be installed vertically or horizontally, and work with standard dimmers (0-10V or PWM) for intensity control.
Which One Should You Choose?
Choose the RX-PAR38 if you need:
- Higher power output for demanding plants
- Larger coverage area per fixture
- Deeper canopy penetration for tall plants
- More beam angle flexibility
Choose the RX-PAR30 if you need:
- Compact size for small spaces
- Lower power consumption
- Cost-effective lighting for multiple fixtures
- Desktop or shelf growing setups
Both the RX-PAR38 and RX-PAR30 represent Koray Lighting’s commitment to quality and performance. With over 15 years of LED expertise and 200+ patents, Koray ensures every fixture delivers consistent, reliable performance backed by CE, RoHS, and FCC certifications.
For more information about these products or to request specifications, visit www.koraylights.com.
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