Kelvin by Rift Labs 300W Full Color Spectrum RGBACL LED COB Studio Light (B-Mount)

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Product Overview


  • For Studio & Film/TV Production
  • Output: 9031 Lux at 3.3' (5600K)
  • 2000 to 20,000K; RGBACL Control
  • B-Mount / Multi-Voltage AC Operation
  • On-Board, DMX, and Bluetooth Control
  • CRI 98 | TLCI 99 | CQS 97 | SS1 86
  • CCT, HSI, RGB, Gel and Lighting Effects
  • Hybrid Fan Cooling
  • Includes 55° Reflector, Travel Case
  • Includes Controller & 2 x Battery Plates

The Kelvin Epos 300-B RGB LED COB Monolight from Rift Labs is a 300W-equivalent LED monolight with power control that regulates its output to an accuracy of 0.1%. It is made with a meticulous attention to detail to ensure it outperforms expectations, in both still and video applications. It is built around the Cantastoria Engine, which doesn't use any white LEDs. Instead, it utilizes red, green, blue, amber, cyan and lime, resulting in an infinite color palette of precisely mixed light. The RGBACL light engine design provides a larger CCT range and can produce more saturated colors with more output compared to RGBWW lights. This broad color control range provides both gel effects and customizable lighting effects for added versatility, to suit any lighting requirement. The light head features a 6mm solid aluminum housing that exceeds structural requirements, that better conducts heat away from the light, and it is stronger than creaky plastic. It features a classic Bowens S reflector mount, making it compatible with a wide range of available light modifiers.

The Controller box offers a combination of 5" touchscreen LED analogue controls, and allows the Epos 300 to be controlled remotely using the free to download Kelvin Narrator app for iOS or Android. It also provides wired DMX and Lumen Radio wireless DMX control options. It supports multi-voltage operation for worldwide use, and incorporates dual B-Mount battery plates for use in locations where power mains are unavailable. Note: B-Mount batteries and battery chargers are available separately.

This kit includes an Epos multifunctional rolling case made of durable ballistic nylon. It features rubber wheels, a tow handle, padded internal dividers, and an ID pocket.


  • 300W full-spectrum LED COB studio light
  • Cantastoria full RGBACL six-color light engine
  • 2000 to 20000K CCT color temperature range
  • 0–100% continuous dimming
  • Bluetooth operation with Kelvin Narrator App
  • Integrated DMX, Lumen Radio/Wireless DMX operation
  • Bowens S mount compatible
  • 6mm aluminum housing
  • Includes a durable water resistant semi-soft rolling case

Epos Controller with Battery Plates

  • 5" TFT LCD display with touchscreen and buttons
  • AC Input Power: 110 to 240 VAC, 50/60 Hz
  • 2 x B-Mount battery plates
  • 4-pin head cable, 16.4 ft / 5M
  • Neutrik Power CONTRUE TOP AC power cable, 16.4 ft / 5M


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