Godox KNOWLED TP4R Tube Light

The Godox KNOWLED TP4R is a professional full-color LED tube light designed for film, television, and commercial production. It’s part of Godox’s KNOWLED TP tube lineup and is built for clean, even, controllable RGB lighting in real-world conditions — including exterior work thanks to its IP65 rating.

Specification	Details
Model	TP4R
Input Power	≈ 47 W
DC Input	20V ⎓ 2.35A
Battery Type	Lithium battery
Battery Capacity	14.4V, 5960 mAh
Power Supply Options	DC Power Supply, Internal Lithium Battery, V-mount Battery*
Battery Life (100% Brightness)	Approx. 140 minutes
Charging Time	Approx. 150 minutes
CCT Range	2000K – 10,000K
Color Modes	CCT, HSI, RGB, GEL, FX
FX Types	17
Average CRI	≥96
Average TLCI	≥96
Waterproof Grade	IP65
Control Methods	DMX512, RDM, CRMX, Bluetooth App, Light Body Control
Bluetooth Control Distance	Max. 30 m
Wireless Control Distance	Max. 100 m
Operating Temperature	−10°C to 40°C

*V-mount battery must be 14.8V or 26V, 100Wh or higher (sold separately).

Physical Specifications

Specification	Details
Dimensions	47 × 47 × 1200 mm
Net Weight	≈ 1.5 kg

Fixture Overview

The TP4R is a rigid, linear LED tube that delivers smooth illumination along its full length. It supports multiple color modes (CCT/HSI/RGB/GEL/FX) and professional control methods (DMX/RDM, CRMX, Bluetooth), which makes it viable on both small crews and console-driven sets.

It can function as:

• a visible practical tube in frame
• a hidden linear source for set lighting
• a soft, close-range key/fill/edge light

Key Characteristics

Full-color tube with wide CCT range
IP65 weather resistance (tube category advantage)
CRMX + DMX/RDM for pro control workflows
Battery-powered operation for cable-free placement
Even, diffused linear output (good wrap, clean gradients)

This isn’t a “YouTuber glow stick.” It’s built to live in actual lighting packages.

Light Quality and Output

The TP4R produces a soft, linear source that wraps nicely at close distances and creates flattering, controlled highlights. Tube lights excel at:

• edge light that isn’t harsh
• soft fill without big stands/frames
• smooth background gradients on walls
• practical-looking sources in frame

Because it’s a long source, it reads more “real” than a small panel in many set-design situations.

Color and Control

The TP4R supports five operating modes:
CCT mode
HSI mode
RGB mode
GEL mode
FX mode

It also includes 17 FX types for practical effects and cue-based looks.

Control methods supported:
DMX512 control
RDM control
CRMX control
Bluetooth app control
Light body control

This gives you both worlds: fast solo control via app, or proper integration into a board-op workflow.

Power and Battery Workflow

The TP4R supports multiple power options:
DC power supply
Internal lithium battery
V-mount battery power supply (sold separately)

This matters because tubes are often placed where cables are annoying or impossible. Battery power keeps the tube clean, fast, and safe to rig.