Tunable Bi-Color CCT Range for Any Shooting Environment
You can now achieve natural-looking key illumination on location without carrying bulky lighting gear. The Ulanzi LM-P40BI Bi-Color Video Light incorporates high-efficiency LED beads engineered for precise color balance. Because you can adjust the CCT smoothly from 2500K to 6500K using intuitive side controls, matching warm tungsten room lighting or crisp outdoor daylight is effortless. If you need a larger panel light with expanded LED output for broad studio scenes instead, check out our Ulanzi VL200 Bi-Color LED Light.
Pro-Grade CRI 95+ Color Accuracy with Soft Beam Diffusion
Do not compromise on skin tone fidelity during commercial interviews, YouTube vlogs, or product close-ups. This compact video light is calibrated to deliver exceptional color rendering across every shoot:
High Color Fidelity (CRI 95+): First, accurate color reproduction ensures your subjects look vibrant and true-to-life without greenish tinting.
Included Soft Diffuser Cover: Next, the custom-fit silicone diffusion cover softens the overall beam, spreading light evenly to eliminate harsh facial shadows.
Precise Rear OLED Readout: Finally, monitor your brightness levels and color temperature in real time on the crisp digital display screen.
Rechargeable Battery Flexibility with USB Type-C Fast Powering
You will no longer worry about your key light cutting out during critical continuous recordings. The Ulanzi LM-P40BI Bi-Color Video Light features an integrated high-capacity rechargeable lithium battery that powers long shooting sessions with ease. Furthermore, the modern USB Type-C charging port allows you to power the light continuously using portable power banks or laptop ports. For large studio setups using heavy-duty COB modifiers with speedring mounts, pair your lighting kit with our Ulanzi AD-1 Adapter.
Compact On-Camera Mounting for Run-and-Gun Filmmaking
Do not let heavy lighting accessories slow down your fast-paced production workflow. Weighing only a few ounces, this portable light module includes a universal cold shoe adapter with a standard 1/4″-20 threaded socket. Therefore, you can mount it directly onto camera hot shoes, smartphone clamps, cages, or desktop tripods instantly. For maximum support and stability when elevating your camera rig on set, attach your gear onto our Ulanzi Heavy Duty Video Tripod.
Product Specifications Table
| Feature | Technical Specification Details |
| Product Model / SKU | Ulanzi LM-P40BI (LM-P40BI) |
| Light Engine Type | Compact Bi-Color LED Panel |
| Color Temperature Range | 2500K to 6500K Tunable CCT |
| Color Fidelity Rating | CRI 95+ / TLCI 96+ |
| Power Source | Built-in Rechargeable Lithium Battery |
| Charging Interface | USB Type-C Fast Power Input |
| Dimming Range | Stepless Brightness Adjustment (0% to 100%) |
| Mounting Mechanism | Universal Cold Shoe Mount with 1/4″-20 Threaded Socket |
| Included Accessories | Custom Soft Diffuser Cover & Charging Cable |
| Body Construction | Lightweight High-Impact ABS Polymer |













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