Both lights sit in the 300-watt-class daylight LED category and both use a Bowens-style mount, so they accept many of the same softboxes and modifiers. Choose the Aputure LS 300d II if you value its long-standing place in film and video work and its ecosystem. Choose the Godox Knowled M300d if you already use Godox gear and want a light that fits that system.

What They Are For
These are continuous lights, which means they stay on so you can see the effect before you shoot. They are used for interviews, product video, music videos and photo work where a flash is less convenient. Each is a point-source COB (chip on board) light, so you usually pair it with a reflector, softbox or lantern to shape the output.
Key Differences That Matter
| Area | Aputure LS 300d II | Godox Knowled M300d |
|---|---|---|
| Category | Daylight COB LED | Daylight COB LED |
| Mount | Bowens style | Bowens style |
| Brand ecosystem | Aputure accessories and app control | Godox accessories and wireless system |
| Typical user | Film and video crews | Photo and video creators already on Godox |
| Power setup | Mains and battery options | Mains and battery options |
Output figures, fan noise, control options and included accessories differ in details. Check each maker’s specification page rather than relying on a general summary.
How to Choose
- Check your modifiers. If you own Bowens-mount softboxes, either light will fit, but confirm the mount on the product page.
- Think about your ecosystem. Mixing a flash system and LED lights from one brand can simplify wireless control.
- Consider noise. If you record audio on set, read what the maker says about fan behavior and whether a quiet mode exists.
- Plan your power. Decide whether you will work from the wall or need battery use on location.
- Consider support. Look at accessory availability and service options in your region.
Common Setup Tips
- Use a large softbox or light dome for flattering, soft light on people.
- Keep the light a little above eye level and angled down.
- Control spill with flags or by moving the subject away from the background.
- Use a sturdy stand and sandbags, since these lights are heavy.
Weight and transport matter too. These lights, their control boxes and cables take up space in a case, so check what each kit includes and what you must buy separately, such as a stand, a reflector or a softbox. Compare the full list of parts on each maker’s page, and ask the seller if anything is unclear.
FAQ
Is 300 watts enough for outdoor work?
It can help fill shadows in daylight at close range, but it will not overpower the sun for large scenes. Treat it as a fill source in bright conditions.
Do I need a modifier?
Yes, in most cases. Bare COB light is hard and directional, so a softbox or reflector improves the look.
The Short Version
Choose the Aputure LS 300d II for a film-focused ecosystem and the Godox Knowled M300d if you already own Godox gear. Confirm specs, noise and accessory support on each maker’s page before buying.