Sony Global

Video Chat with a Lighting Expert - Live

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

BH #QU9212303 • MFR #921-2303
Print
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.
More Details
In Stock
No Store Display
Free Next Day Shipping
Express Store Pickup
Protect Your Gear
Add a protection plan from $16.00
Length
Ask an Expert
800-606-6969

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
48.8 x 1.5 x 1.5" / 123.8 x 3.8 x 3.8 cm (Fixture)
Weight
1.9 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

Rugged Build And Easy Use.

By Thomas
Rated 4 out of 5
Date: 2025-11-19

I'm Really Impressed With The Solid Build Of This Light. It Seems Very Durable And High Quality. Set Up Is Simple, Color Temperature Can Be Easily Changed With The Dial On The Light. It Isn't Easily Stand Mounted And Is Better Suited To Their Proprietary Grip Gear. If Dimming Is Important To You It Is Not Well Suited For That And Requires A Special Dimmer. But It Is Nice You Can Turn It On And Use It Without A App On Your Phone.

I was shipped a defective tube - has not yet been replaced

By Cornelius
Rated 1 out of 5
Date: 2025-05-08

The tube powers on, but several LED diodes display the incorrect color temperature straight out of the box. I didn’t discover the issue until after B&H’s return window closed, so I contacted Quasar for a warranty replacement. A week later I’ve received only a brief acknowledgment and no timeline for a fix. Disappointing QC and sluggish manufacturer support.

See any errors on this page?

What is the Lux at 3.3 ft?

What is the Lux at 3.3 ft?
Asked by: zack
The manufacturer does not specify the Lux rating of the Quasar Science Crossfade X Linear Bi-Color LED Light (US, 4') BH #QU9212303.
Answered by: Reuben K
Date published: 2024-03-28

Does the supplied TRUE1 AC Power Cord plug right ...

Does the supplied TRUE1 AC Power Cord plug right into the wall without adapters?
Asked by: zack
If you live in the United States of America or any country that uses a 120V 60 Hz AC outlet and uses a Type B 3-prong outlet, then no adapter is needed to connect the Quasar Science Crossfade X Linear Bi-Color LED Light (US, 4') to your wall outlet.
Answered by: Manzell L
Date published: 2024-03-28

Can you use a battery instead with this one?

Can you use a battery instead with this one?
Asked by: Kristin
In order to use the Quasar Science Crossfade X Linear Bi-Color LED Light (US, 4'), you would have to be able to adapt a battery to a true 1 power connection, and I cannot find that type of adapter on our website at this time.
Answered by: Davis H
Date published: 2025-04-03

Does this include the power cable? It's not ...

Does this include the power cable? It's not listed in the item description
Asked by: Albert
Yes, the Quasar Science Crossfade X Linear Bi-Color LED Light (US, 4') comes with the TRUE1 AC Power Cord.
Answered by: Vinny B
Date published: 2024-03-28

Which cable do I need to power it on? Do you have ...

Which cable do I need to power it on? Do you have a link?
Asked by: zack
Laird Digital Cinema Neutrik TRUE1 powerCon to NEMA5-15P 20A Power Input AC Cable (10'BH #LATR1ACIN010 https://www.bhphotovideo.com/c/search?q=%20True1%20AC%20power%20Cord&sts=ma
Answered by: Gary L
Date published: 2024-01-31

does this have a built-in dimmer?

does this have a built-in dimmer?
Asked by: Ragnar
Unfortunately, the Quasar Science Crossfade X Linear Bi-Color LED Light (US, 2') does not have a built-in dimmer.
Answered by: Daniel C
Date published: 2025-12-02

What type of mounting clip do I need for this ...

What type of mounting clip do I need for this bulb?
Asked by: Ryan
You can find a variety of mounting adapters on the product page for the Quasar Science Crossfade X Linear Bi-Color LED Light (US, 2') (QU9212302), under the Accessories tab and the Mounting Adapters sub-tab.
Answered by: Boyd H
Date published: 2024-04-10

Is the Crossfade X Linear Bi-Color LED Light Tube ...

Is the Crossfade X Linear Bi-Color LED Light Tube from Quasar Science comparable with the Impact D1000 1000W AC Analog Dimmer?
Asked by: Paul
No, the Impact D1000 1000W AC Analog Dimmer Control (110-120V) is not compatible with the Quasar Science Crossfade X Linear Bi-Color LED Light (US, 2') or any other LED lights.
Answered by: Andrea B
Date published: 2025-11-05
  • y_2026, m_5, d_18, h_13CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.43
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_8
  • loc_en_US, sid_1686089, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_bhphotovideo
Whatever You Need, We've Got It