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Quasar Science Crossfade X Linear Bi-Color LED Light (US, 4')

BH #QU9212303 • MFR #921-2303
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Quasar Science Crossfade X Linear Bi-Color LED Light (US, 4')
Key Features
  • 120V, 50W Bi-Color LED Light Tube
  • 2000-6000K Color Temperature
  • Length: 4'
  • Dimmable, Flicker-Free Operation
This Crossfade X Linear Bi-Color LED Light Tube from Quasar Science measures 4' long and is a low-profile linear light source that offers a simple, broad spectrum and tunable white light from a beautifully warm 2000K to a crisp 6000K. Whether for lighting actors or environments, its simplicity delivers versatility at an exceptional value. Use one as a key light, rig three for a 3-point lighting setup, install 10 as architectural lighting accents, or go big and stack 100 into a massive LED array with unprecedented energy efficiency for illuminating stage backings, or for rigging above diffusion for the perfect skylight.
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Quasar Science Crossfade X Overview

This Crossfade X Linear Bi-Color LED Light Tube from Quasar Science measures 4' long and is a low-profile linear light source that offers a simple, broad spectrum and tunable white light from a beautifully warm 2000K to a crisp 6000K. Whether for lighting actors or environments, its simplicity delivers versatility at an exceptional value. Use one as a key light, rig three for a 3-point lighting setup, install 10 as architectural lighting accents, or go big and stack 100 into a massive LED array with unprecedented energy efficiency for illuminating stage backings, or for rigging above diffusion for the perfect skylight.

The fixture's light weight makes it easily hand-portable and opens up rigging possibilities. Carry one or two fixtures with camera equipment on public transportation, and quickly tape them up to walls for temporary lighting setups without safety worries. The scalable design allows them to be stacked in columns and rows to create large LED panels and arrays of any size, or line them up end-to-end for long linear lighting sources. Construct geometric patterns and 3D structures for endless visual possibilities.

  • Compatible with most AC TRIAC dimming systems
  • Single-ended power input design
  • Tunable tungsten to daylight white light
  • Easy-to-operate color control dial
  • Easily concealed in minimal space
  • Can be used to retrofit legacy Kinoflo products
  • Note: To dim Q-LED crossfade lamps, plug the power connector into an AC outlet wired to a wall-dimmer switch or a standalone TRIAC dimmer. VARIAC-type dimmers are not compatible.
UPC: 768480724006

Quasar Science Crossfade X Specs

Key Specs
Item Type
1x LED Light Tube/Wand
Included Storage Case
No
Photometrics at 3.3' / 1 m
Not Specified by Manufacturer
Color Temperature
2000 to 6000K
Color Modes
Daylight, Tungsten
Dimming
Controller Not Included
Front Accessory Mount
No
Power Source
AC Power (Cable Included)
Input Power
120 VAC, 60 Hz
Power Consumption
50 W
Light Fixture
Item Type
1x LED Light Tube/Wand
Included Storage Case
No
Lumens
4500
Photometrics
Not Specified by Manufacturer
Color Temperature
2000 to 6000K
Color Modes
Daylight, Tungsten
Dimming
Controller Not Included
Cooling System
Passive
Expected Lamp Life
25,000 Hours
Built-In Flash
No
Preprogrammed Effects
No
Umbrella Mount
No
Front Accessory Mount
No
Power & I/O
Power Source
AC Power (Cable Included)
Inputs/Outputs
1x powerCON TRUE1 AC Power Input
Input Power
120 VAC, 60 Hz
Included Adapter / Cable
1x USA Type-A/B to powerCON TRUE1 Cable
Inline Switch
No
Power Pass-Thru
No
Power Consumption
50 W
General
Display
No
Environmental Resistance
No
Materials
Plastic (Housing)
Dimensions
48.7 x 1.5 x 1.5" / 123.8 x 3.8 x 3.8 cm (Fixture)
Weight
2 lb / 0.9 kg
Packaging Info
Package Weight
3.4 lb
Box Dimensions (LxWxH)
50.5 x 3 x 3"

Quasar Science Crossfade X Reviews

Great Tube light

By Jonathan
Rated 5 out of 5
Date: 2026-05-19

These lights are great. Bi-color so you can easily change color temps. These lights do not have a built in dimmer, so you will need a quality dimmer to run them at a lower intensity. I've found with my dimmer, I am running these at the lowest setting when putting them on screen behind a subject.

Good, Affordable LED Tubes

By Michael
Rated 5 out of 5
Date: 2025-10-31

I Picked Up These 2' Tubes To Supplement My 4' Tubes I've Been Using, And They're Great. Bright Output, Accurate Color, And They Blend Well With Most Other Tubes I've Used Them With. I've Got A Quasar Science T12 Double Plate That I Can Mount 2 Of These Lights To For A Portable, Yet Powerful, Key Light For Interviews. My Only Beef Is That They're Not Battery Powered, But For The Price, That's To Be Expected.

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