ULANZI 2637 I-Light RGB Tube Light with Magnetic Mount

The ULANZI 2637 I-Light is a pocket-size RGB tube light that gives creators full-color, adjustable lighting in a body just 3.9 inches long and weighing about 80g. It runs on a built-in rechargeable battery, so you can add colored accents, fill light, or background glow anywhere without a power outlet.

Its magnetic body and dual 1/4"-20 threads let you attach it to metal surfaces, tripods, light stands, or cold shoes in seconds. This makes it a practical choice for video shoots, product photography, streaming setups, and travel content. If you are looking for a reliable ulanzi light that fits in a jacket pocket, the 2637 is built for that job.

With 2500K-9000K color temperature, 360° HSI color control, and 20 built-in effects, it works for both accurate white lighting and creative mood lighting.

Key Features

• Ultra-compact, 3.9-inch body (about 80g): It slips into a pocket or camera bag, so you can carry a full lighting accent wherever you shoot.
• 2500K-9000K color temperature range: Switch from warm candlelight tones through 5500K daylight to cool white, so you can match the existing light in a scene or set your own mood.
• 360° full-color RGB (HSI mode): Adjust hue from 0° to 359° and saturation from 0-100% to create backgrounds, light-painting effects, and colorful accents.
• 20 built-in cinematic effects: Presets include Cop Car, Ambulance, Fire Engine, Lightning, Fireworks, TV, Candle, Party, Paparazzi, and Strobe. They add realistic atmosphere to videos without extra gear.
• Magnetic mount at the top and bottom: Stick the light to any metal surface for hands-free placement in tight spaces or on set.
• Dual 1/4"-20 threads on both ends: Mount it on tripods, light stands, magic arms, or cold shoes for flexible positioning.
• 2000mAh built-in battery with up to 90 minutes of runtime: Shoot without cables. It recharges in about 2.5 hours through USB Type-C.
• USB Type-C charging: The reversible port lets you charge with the same cable as many modern phones and accessories.
• LCD display with simple controls: The screen shows the current mode (CCT, RGB, or Effects), color temperature or hue, brightness, and battery status, so you can adjust settings quickly during a shoot.
• CRI 95+ (typical): High color rendering helps keep skin tones and product colors looking natural on camera.
• Smooth 0-100% stepless dimming: Fine brightness control lets you balance the light against other sources.
• CE, RoHS, and FCC certified, with 100% full inspection: The light meets recognized safety and quality standards, and every unit is tested before shipping.

Why Choose This RGB Tube Light

A good RGB tube light should be small, flexible, and easy to control. The ULANZI 2637 delivers all three. It is light enough to carry every day, and the magnet-plus-thread mounting means you can place it almost anywhere on set.

You get adjustable white light for clean fill and full-color RGB for creative effects in one device. The built-in battery removes the need for power cables, and the LCD screen shows exactly what you are adjusting. For creators who want an affordable, portable ulanzi light, the 2637 offers strong flexibility for its size.