If you shoot commercial work, you know the struggle. Studio lights are powerful but stuck near a wall outlet. Battery-powered options are portable but lack the punch. And anything with DMX control usually costs more than your camera.
The GVM PRO SD650B is a 650W bi–color COB light that offers a different path. It delivers 81,300 lux at 1 meter with the standard reflector, a 2700K–6800K bi-color range, 97+ CRI, and built-in DMX control — plus a separate controller box that accepts two V–mount batteries for location work. It’s a continuous light that doesn’t force you to choose between studio power and outdoor flexibility.
Table of Contents
Key Specifications
| Specification | Detail |
| Model | GVM-PRO-SD650B |
| Power | 650W |
| Light Engine | Bi-color COB |
| Color Temperature | 2700K – 6800K |
| CRI / TLCI | 97+ |
| Brightness (with reflector, 1m) | 81,300 lux |
| Brightness (bare bulb, 1m) | 21,300 lux |
| Dimming | Stepless, 0.1% to 100% |
| Control | Onboard + Bluetooth APP (Mesh) + DMX-512 |
| Power | AC 100–240V or 2x V-mount batteries |
| Fixture Weight | 6.7 kg |
| Controller Weight | 2.6 kg |
| Mount | Bowens |
| Cooling | Active cooling with 3 modes: Smart, High Speed, Silent |
Why the SD650B Stands Out
650W of Output for Studio and Location
At 650W, the SD650B delivers 81,300 lux at 1 meter with the included standard reflector. That‘s enough to serve as a key light for interviews, a fill light for product shots, or the primary source for commercial sets. The 2700K–6800K bi-color range lets you match ambient lighting without gels.
With CRI/TLCI of 97+, skin tones look natural straight out of camera — minimizing post-production color correction.
Separate Controller with V–Mount Battery Support
Unlike all-in-one designs, the SD650B uses a separate controller box with two V–mount battery plates. This design offers two advantages:
- Location shooting: Power the light with two V-mount batteries when AC power isn’t available. In battery mode, the light runs at half power — still more than enough for most location shoots.
- Reduced head weight: The controller attaches to the light stand via the included clamp, keeping the fixture itself lighter and easier to adjust.
DMX Control for Professional Setups
The SD650B supports DMX–512 with both 8–bit and 16–bit precision, making it compatible with professional lighting consoles and multi-light setups. For film sets and broadcast studios where synchronized control matters, this is a feature you usually only find on fixtures costing far more.
12 Light Source Presets and 12 Effects
The SD650B includes 12 built–in light source presets for quick scene matching, and 12 cinematic lighting effects — including lightning, TV, paparazzi, candle, explosion, and more. The intensity and rate of each effect can be customized.
Advanced Cooling System
The SD650B features an active cooling system with three fan modes: Smart (auto-adjusts based on temperature), High (maximum cooling), and Silent (low noise for sound-sensitive environments).
Who Is the PRO SD650B For?
| User Type | Why It Fits |
| Cinematographers | 650W output, 97+ CRI, DMX control for professional sets |
| Broadcast studios | Consistent color, DMX integration, reliable performance |
| Commercial production crews | V-mount battery support for location shoots |
| Documentary filmmakers | Portable with batteries, robust build |
| Gaffers and lighting directors | DMX-512, 16-bit precision, Mesh networking |
| Content creators with studios | Bi-color flexibility, effects, APP control |
Frequently Asked Questions
Can the PRO SD650B run on batteries?
Yes. The separate controller box features two V-mount battery plates. In battery mode, the light operates at half power — still sufficient for most location shoots.
What control protocols does the PRO SD650B support?
Onboard control, Bluetooth APP with Mesh networking, and DMX-512 with both 8-bit and 16-bit precision.
How quiet is the cooling fan?
The PRO SD650B has three fan modes. In Silent mode, the fan operates at low noise levels suitable for sound-sensitive environments.
What is included in the box?
Light fixture, controller, controller clamp, AC power cable, controller connection cable, standard reflector, protective cover, and carry bag.
What modifiers work with the SD650B?
The SD650B uses the industry-standard Bowens mount, giving you access to a vast ecosystem of softboxes, reflectors, fresnels, and other modifiers.
Final Verdict
The GVM PRO SD650B is a professional studio light that delivers 650W of bi-color output with the flexibility of V–mount battery power and DMX–512 control. It’s built for cinematographers and production crews who need professional-grade lighting both in the studio and on location.
With 97+ CRI/TLCI, a 2700–6800K bi-color range, 12 source presets, and 12 effects, it fits comfortably into professional film, broadcast, and commercial production workflows.
If you need a powerful, color-accurate COB light that can go from the studio to an outdoor location shoot without missing a beat, the PRO SD650B is built for your workflow.
