Is It Better to Use LM301B or LM301H Chips for LED Grow Lights? 

 May 30, 2024

By  lightmyleaf

Determining which is definitively "better," LM301B or LM301H. If you prioritize readily available information and versatility, LM301B is a solid choice. For potential efficiency gains in full-spectrum grow lights, consider LM301H EVO or explore other grow light-focused LED bead options with better available data.

What is LM301B? VS What is LM301H?

LM301B and LM301H are both mid-power LED beads from Samsung, known for their efficiency and performance.


Popular choice: Widely used in various lighting applications due to its balance of features and cost.

Specifications (typical):

Wattage: Around 0.2 watts

Forward voltage: Around 2.7 volts

Color temperature: Available in a range like 2200K to 6500K (warm white to cool daylight)

Color Rendering Index (CRI): Can range from 70 to 90 (good to excellent color reproduction)

Efficiency: Generally high Lumens-per-Watt (lm/W) for efficient light output.

Advantages of LM301B

Widely Available Information: You can easily find datasheets with detailed specifications like wattage, voltage, spectrum, and efficiency. This allows for a more precise understanding of what you're getting.

Versatility: LM301B is a well-rounded LED suitable for various lighting applications beyond grow lights.

LED Chips


Some sources suggest LM301H shares electrical and optical characteristics with LM301B. This means it might offer similar wattage, voltage, color temperature, CRI, and efficiency.

LM301H might be geared more towards full-spectrum applications, given its association with Samsung's LM301H EVO line, which targets growing lights.

Advantages of LM301H

Potential Efficiency Improvement: Some sources suggest LM301H might offer slightly higher efficiency than LM301B, translating to more light output per watt of energy used.

Possible Focus on Full-Spectrum: There's a chance LM301H caters more towards full-spectrum applications, potentially with a spectrum better suited for plant growth.

Breakdown of the similarities and considerations between LM301B and LM301H LEDs

Similarities (Possible)

Form factor. Both are likely mid-power SMD (Surface Mount Device) LEDs, meaning they're small and surface-mounted on a circuit board.

Electrical characteristics. Sources suggest LM301H might share electrical properties like wattage (around 0.2 watts) and forward voltage (around 2.7 volts) with LM301B.

Optical characteristics. LM301H may also share similar features with LM301B in terms of:

Color temperature range (possibly 2200K to 6500K)

Color Rendering Index (CRI) range (potentially 70 to 90)


Limited LM301H information. While LM301B has public specifications, details about LM301H are scarce on Samsung's website. This makes it difficult to confirm the exact similarities mentioned above.

Possible Efficiency Difference. Some sources suggest LM301H might offer slightly better efficiency (lm/W) than LM301B, but this is uncertain without a datasheet.

Potential Spectrum Focus. There's a possibility LM301H leans more towards full-spectrum applications, given its association with Samsung's LM301H EVO line for growing lights.

LM301B is the better option. You'll know exactly what you're getting due to its public datasheets, making it suitable for various lighting projects.

Quantum Board Grow Light 120W
Quantum Board Grow Light 120W

Lightmyleaf 120W Full Spectrum LED Grow Lights

The Lightmyleaf 120W Full Spectrum LED Grow Lights uses a combination of Samsung LM301B and LM301H diodes. The Lightmyleaf 120W appears to be a good option for those looking for an efficient full-spectrum LED grow light with a reputable brand of LEDs.

Light source: Samsung LM301B/LM301H diodes

Benefits of diodes: High efficiency, long lifespan

Spectrum: Full spectrum (suitable for all plant growth stages)

Vegetative stage: 2.5’x2.5’

Flowering stage: 2’x2’


What is the most efficient LED chip?

The most efficient LED chip is currently the Samsung LM301B. It has a luminous efficacy of up to 220 lumens per watt (lm/W), which is significantly higher than the efficiency of most other LED chips.

What are the different SMD LED types?

SMD (Surface Mount Device) LEDs are a type of LED that is mounted on a printed circuit board (PCB) using surface-mount technology (SMT). They are available in a variety of shapes and sizes, and are commonly used in a variety of applications, including lighting fixtures, backlights, and electronic devices.

What is the difference between 4014 and 3030 LED lights?

4014 LED lights are larger and brighter than 3030 LED lights. They are also less efficient and have a shorter lifespan. However, they are less expensive than 3030 LED lights.

3030 LED lights are smaller and more efficient than 4014 LED lights. They also have a longer lifespan. However, they are more expensive than 4014 LED lights.

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