ULANZI LM24 vlogging light for DJI Osmo Nano / Osmo Action 6

If you film on a DJI Osmo Action 6 or Osmo Nano, lighting is often the difference between “usable” and “looks intentional”. The ULANZI LM24 is a compact LED fill light accessory that’s built for quick mounting and fast tweaks, rather than studio-style setup.

On paper, it looks like the sort of add-on you’ll actually use: magnetic snap-on/off, dimming from 10% to 100%, and a daylight-leaning CCT option around 5600K. The real question is whether its reach and battery life match how you shoot day to day.

Quick overview

The ULANZI LM24 is a mini LED vlogging light designed for DJI Osmo Action 6 and Osmo Nano. It uses 12 high-brightness LED beads and aims to add fill light for selfies, vlogging, outdoor sports, hiking, and other on-the-go recording.

It also stands out for the reversible magnetic snap-on design: you can attach it quickly and adjust the front/rear fill positioning to better suit your scene or selfie angle. It’s not meant to replace a full lighting rig, but it can make a noticeable difference when the environment is a bit too dark, backlit, or simply inconsistent.

Key features that affect real filming

This light is clearly designed around speed and practical control. You get:

• Magnetic quick-release that snaps on instantly and can be removed quickly (the brand claims around 1 second). If you swap between helmet/chest/selfie stick-style setups, that “grab and go” approach matters.
• Dimming in 3 levels (10%–100%) so you can dial back the intensity without a complicated menu.
• Adjustable colour temperature range listed as 200K–5600K, with a CCT target of 5600K mentioned for natural daylight.
• CRI stated as ≥95, which is relevant if you care about colour accuracy rather than just “brightness”.

There’s also a simple, one-button quick adjustment idea for getting to a workable look faster. That’s good for vlogging where you don’t want to stop filming just to play with settings.

What you’ll notice day to day

Where the LM24 makes sense is when lighting is unpredictable. Imagine you’re filming a walk-and-talk: you step from shade into sun, then into a darker stretch under trees. Having a small fill light attached can help keep faces and key details more evenly lit.

Because it’s a tiny body accessory, it’s easier to keep on your kit. The dimensions and weight are small enough that it won’t feel like a big separate piece of equipment.

That said, it’s worth keeping expectations realistic: mini fill lights are always a “support” light. The entry in the details mentions an illuminance of 102Lux at 0.5m, which gives you a clue about effective proximity—so it’s more useful when your subject is relatively close.

Waterproofing: useful, but read the limits

The LM24 is IPX5 water resistant, which in practical terms should help with rain and splashes while you’re filming outside.

However, the information provided is explicit: it’s not fit for submersion (for example diving, swimming, or a bathroom-type water exposure), and it also notes avoiding direct exposure to waves/surf. If your shooting involves heavier water immersion, you’d want a different kind of solution.

Also, remember that waterproof ratings typically cover certain conditions, but not “everything”. With action sports, it’s sensible to treat this as weather-and-splash protection, not underwater gear.

Power and portability

The light includes a 500mAh rechargeable battery and is described as offering up to 1 hour at max brightness and up to 8 hours at minimum brightness. There’s also a Type-C port for charging while in use, which is handy if you’re filming longer sessions and don’t want to keep stopping.

This part can influence your buying decision quite a lot. If you tend to run at the brightest setting, runtime may feel tight. If you’re happy to use lower levels as fill (which is often the point), the battery life looks far more comfortable.

Who it suits (and who should think twice)

It’s a good fit if you:

• shoot vlogs, selfies, or outdoor content with a DJI Osmo Action 6 or Osmo Nano
• want a compact fill light you can mount quickly and remove just as fast
• care about practical lighting tweaks (dimming levels, colour temperature options, and CRI ≥95)
• mostly film at relatively close distances, where fill light is meant to do its job

It may not be the best match if you need:

• a light designed for larger spaces or strong, long-range illumination
• reliable underwater use (the provided info points out it’s not for submersion)
• long continuous sessions at maximum brightness (max runtime is listed as up to 1 hour)

Worth considering if you’re building a lightweight action-cam kit and don’t want lighting to become a chore.

Tech specs

• Type: LED action camera fill light accessory
• Name: ULANZI LM24
• Designed for: DJI Osmo Action 6 / DJI Osmo Nano
• LEDs: 12 high-brightness LED beads
• Max illuminance: 102Lux @ 0.5m
• Colour temperature: 200K–5600K (natural daylight 5600K stated)
• CRI: ≥95
• Brightness control: 3 levels (10%–100%)
• Mounting: reversible magnetic snap-on design
• Water resistance: IPX5 (not for submersion)
• Battery: 500mAh rechargeable
• Runtime: up to 1 hour (max brightness), up to 8 hours (min brightness)
• Charging: Type-C, charging while in use supported
• Size: 1.61 × 1.54 × 0.91 in
• Weight: 1.09 oz

When it makes sense

Buying the ULANZI LM24 is most likely to feel worthwhile if you want quick, on-camera fill light for vlogging and outdoor action, and you’re filming on the DJI Osmo Action 6 or Osmo Nano ecosystem it’s aimed at.

If you’re expecting a powerful, all-situations light—especially for underwater or long-range work—it can fall short, particularly at max brightness where runtime is limited. For close-up fill, though, it’s the kind of accessory that can tidy up your footage without turning your setup into a production.

Mini FAQ

Does the LM24 work for both Osmo Action 6 and Osmo Nano? The provided details state it’s designed for DJI Osmo Action 6 and DJI Osmo Nano.

Is it safe to use in rain? It’s rated IPX5 for water resistance against rain and splashes, but it’s not for submersion.

Can you adjust brightness and colour temperature? Yes—brightness has 3 levels (10%–100%) and the colour temperature is listed as 200K–5600K.

How long does it last on a full charge? The information provided says up to 1 hour at max brightness and up to 8 hours at minimum brightness.

Is charging while filming supported? The Type-C port is described as enabling charging while in use.