Spectrum King

Spectrum King – American full-spectrum LED grow lights for serious growers

Spectrum King is an American brand that focuses entirely on full-spectrum LED grow lights for indoor and greenhouse cultivation. The brand is one of the pioneers in the field of full-spectrum LED and develops fixtures that come as close as possible to natural sunlight. With powerful, professional grow lights, Spectrum King focuses on growers who want to combine high yield, quality, and energy efficiency.

Full spectrum like natural sunlight

The main distinguishing feature of Spectrum King is its patented full-spectrum light, designed to mimic sunlight as accurately as possible. The fixtures offer a broad spectrum including blue, green, red, deep red, and a proportion of UV/IR. This makes them suitable for the entire life cycle of the plant—from seedling and growth to a vigorous flowering phase—without having to change lamps.

From compact SK models to the Phoenix series

Spectrum King supplies various series of grow lights, ranging from compact models for smaller tents to very powerful fixtures for large growing areas. Well-known names include the SK402+ and SK602+ for classic full-spectrum top lighting, and the Phoenix series (e.g., Phoenix 340, 680, 840, and 1050 W) with modern bar construction and high PPF/µmol-J efficiency. This means there is a suitable model for both the avid hobby grower and the commercial grower.

High efficiency and professional components

Spectrum King uses high-quality LED diodes from top manufacturers and efficient drivers that are designed for professional use. The fixtures deliver high light output per watt, allowing you to get more grams per kWh from your crop. Less heat production compared to HPS makes climate control easier and reduces the risk of heat stress in the grow room.

Uniform light distribution and deep penetration

The grow lights are designed to deliver an even PPFD across the growing area, with sufficient light intensity to penetrate deep into the foliage. This ensures uniform growth, strong side branches and fuller bud development lower down the plant. For growers working with densely planted tents or SCROG systems, this combination of spread and penetration is essential.

Suitable for indoor and greenhouse applications

Spectrum King fixtures are used in classic grow tents and grow rooms as well as in professional greenhouses as supplemental (top) lighting. The robust build quality, high IP rating on many models, and suitability for 120–277 V (and higher on certain models) make the lamps flexible for use in different environments and installations.

Focus on sustainability and long service life

By choosing solid housings, efficient cooling, and high-quality LED chips, Spectrum King lamps are designed for thousands of hours of use with minimal light degradation. That means fewer replacements, less waste, and a stable light level over many growing cycles. For growers who think long term, Spectrum King is a sustainable investment.

Spectrum King – for growers who want to get the most out of full-spectrum LED

Whether you run a compact indoor setup or want to equip a larger grow room or greenhouse with high-end LED, Spectrum King offers full-spectrum grow lights with serious performance. With a focus on natural light, professional components, and high efficiency, Spectrum King is an excellent choice for growers who want to take their cultivation to the next level.