ULANZI 2637 I‑Light Compact Magnetic RGB LED Tube Light

ULANZI 2637 I‑Light Compact Magnetic RGB LED Tube Light: 2500‑9000K | 20 Effects | 2000mAh | Magnetic + 1/4″ Mount

Ultra‑Compact 3.9″ Tube | CCT / RGB / Effects Modes | LCD Display | Type‑C Charging | For Vlogging, Product Shots, Cinematic Lighting, Travel

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Key Features

• Ultra‑Compact & Portable – 3.9″ Long: Small enough to slip into a pocket, yet powerful enough to light your scenes. Weighs just 80g (2.8 oz) – the perfect travel companion for creators.

• 2500‑9000K Wide Color Temperature Range: Freely switch from warm candlelight (2500K) to natural daylight (5500K) to cool clinical white (9000K). Match ambient light or create mood with precision.

• 360° Full Color RGB – HSI Mode: Adjust hue from 0° to 359° and saturation from 0‑100% for unlimited color possibilities. Perfect for creative backgrounds, light painting, and mood lighting.

• 20 Built‑in Cinematic Effects: Unlock amazing movies with presets including: Cop Car, Ambulance, Fire Engine, Lightning, Fireworks, TV, Candle, Party, Fault Bulb, Pulsing, Strobe, RGB Strobe, Paparazzi, Emergency, H/L Beam, Red Flash, Green Flash, Blue Flash, HSI Slow, HSI Fast.

• Magnetic Mount + Dual 1/4″‑20 Threads: Attach to any metal surface via built‑in magnets (top and bottom). Also features 1/4″‑20 threads on both ends for mounting on tripods, light stands, magic arms, or cold shoes.

• 2000mAh Built‑in Battery – 90 Minutes Runtime: Rechargeable lithium battery provides up to 90 minutes of continuous use at full power. Recharges in approx. 2.5 hours via USB Type‑C.

• Intuitive LCD Display & Controls: Clear screen shows current mode (CCT / RGB / Effects), color temperature / hue, brightness level, and battery status. Simple button operation:

  • Long press: Power on/off

  • Short press: Switch modes (CCT → RGB → Effects)

  • Short press M key: Switch between adjusting color temp/RGB/effect type and brightness

  • Short press 🛠️: Adjust parameter

• CRI ≥95 (Typical): High color rendering ensures accurate skin tones and true‑to‑life product colors.

• Type‑C Charging Port: Modern reversible port – charge with the same cable as your phone.

• Smooth Dimming – 0‑100%: Adjust brightness steplessly for precise control.

• CE, ROHS, FCC Certified: Meets international safety and quality standards.

• 100% Full Inspection: Every unit undergoes rigorous quality testing before shipping.

• Official Warranty: Comprehensive warranty coverage for peace of mind.

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Product Details

Ultra‑Compact – Power in the Palm of Your Hand

The ULANZI I‑Light is designed for creators who need professional lighting without the bulk. At just 3.9 inches (approx. 100mm) long and weighing only 80g, it’s smaller than many smartphones. Slip it into a pocket, camera bag, or even a small purse. Whether you’re traveling, vlogging on the go, or setting up a quick product shot, the I‑Light is always ready.

Wide CCT Range – 2500K to 9000K

Dial in the perfect white balance for any scene:

Color Temperature	Effect	Best For
2500K – 3200K	Warm, golden, candlelight	Intimate portraits, cozy scenes, sunset simulation
4500K – 5500K	Neutral, natural daylight	General video, product shots, interviews
6500K – 9000K	Cool, clinical, blue‑tinted	Technical shots, matching fluorescent light, creative effects

CRI is ≥95 – colors appear natural and vibrant.

360° Full Color RGB – HSI Mode

Unleash unlimited creativity with full RGB control:

• Hue (0‑359°): Any color imaginable – from deep red to bright cyan to vivid purple

• Saturation (0‑100%): Vivid colors or subtle pastels

• Brightness (0‑100%): Full dimming control

Perfect for:

• Background accent lighting – Add a splash of color behind your subject

• Product photography – Match brand colors precisely

• Light painting & long exposure – Draw with colored light

• Party & event atmosphere – Match any theme

20 Built‑in Cinematic Effects – No Editing Needed

Add dynamic lighting instantly with 20 preset effects. Perfect for filmmakers, TikTok creators, and anyone who wants to add visual interest without complex programming:

Each effect can be adjusted for speed or intensity via the brightness control.

Magnetic Mount + Dual 1/4″‑20 Threads – Mount Anywhere

The I‑Light offers exceptional mounting versatility:

• Built‑in magnets (top and bottom): Stick to metal surfaces – refrigerators, metal shelves, car bodies, light stands, steel beams. No clamps needed.

• 1/4″‑20 threads (both ends): Attach to tripods, light stands, magic arms, cold shoe adapters, or even stack multiple lights.

• Use as: Handheld wand, on‑camera fill light, magnetic accent light, or tripod‑mounted key light.

Long Battery Life – 2000mAh, 90 Minutes Runtime

The built‑in rechargeable lithium battery provides:

• Up to 90 minutes of continuous use at full power (100% brightness)

• Longer runtime at lower brightness levels

• Charging time: Approximately 2.5 hours via USB Type‑C

• Use while charging? Not explicitly stated, but Type‑C usually supports pass‑through power (check manual)

Intuitive LCD Display & Simple Controls

The bright LCD screen shows:

• Current mode (C