Godox RS100Bi and RS100R: Compact COB monolights announced

Godox announces two battery-powered COB monolights sharing a common form factor, the bi-color RS100Bi and full-RGB RS100R, aimed at location and mobile production.

Godox has announced the RS100Bi/R, a battery-powered COB monolight aimed at run-and-gun and location shooting. The two variants share a common form factor and accessory mount but differ in colour engine: the RS100Bi is a bi-colour fixture covering 2800K–6500K; the RS100R provides full RGB control across 1800K–10,000K, with a GM adjustment range of -100% to +100%, and CCT, HSI, RGBW, GEL, X-Y and FX modes.

Outputs and tools

As you would expect, output differs across the two fixtures. The RS100Bi delivers up to 28,600 lux at 1 m (5600K, with reflector) and carries CRI/TLCI ratings of 98/98. The RS100R reaches 15,900 lux at 1 m (5600K, with reflector) with CRI/TLCI of 95/95, and bare-light output at 5600K is 2860 lux at 1 m. With the reflector at 1 m, per-channel lux measures 3880 (red), 8830 (green), and 3260 (blue). The RS100R supports original gamut, correction gamut, Rec. 709, and DCI-P3 colour space selection.

Both models offer 0.0%–100.0% dimming in 0.1% increments with a true 0% minimum for smooth fades. Four dimming curves are available: linear, S-curve, exponential, and logarithmic. Three smoothing modes (default, smooth, and off) allow further control over dimming response time and transition behaviour. Fan speed is user-selectable: silent, auto, low, medium, or high. The RS100Bi offers 11 FX presets; the RS100R has 14.

Power and control

A built-in 100 Wh lithium battery provides around 52 minutes of full-power runtime. PD charging is supported via USB-C, with pass-through operation; a 60 W or higher charger reaches full charge in approximately two hours (140 W maximum; charger sold separately). When battery levels fall below 5%, output is maintained at a level matched to the charger input.

Control options include onboard controls, wired DMX/RDM via the optional DMX-C2 adapter, and Bluetooth app control up to 30 m via the Godox Light app (v3.0 or above required). NFC tap-to-pair connects the fixture to the app automatically; the app also handles firmware updates.

Mounts and accessories

A 1/4"-20 screw hole on the base provides direct stand mounting, and the included AD-E2 bracket adds a 5/8" receiver for standard light stands. Both models are compatible with the Godox S-Mount modifier system, sharing front accessories with the RS60 series, including softboxes, reflectors, beam modifiers, and the SP36K projection attachment with interchangeable lenses and 360° rotatable body. A storage bag and USB-C charging cable are included.

Dimensions (without reflector) are common across both lights at 234 mm × 78 mm × 78 mm (9.21" × 3.07" × 3.07"). Weights differ slightly: the RS100Bi is 886 g (1.95 lb); the RS100R 921 g (2.03 lb).

Pricing and availability 

• RS100Bi: $229
• RS100Bi 1K (projection attachment kit): $339
• RS100R: $319
• RS100R 1K (projection attachment kit): $469