We feel the need to point out that unlike a traditional macro Speedlight, an LED based system like this has several shortfalls, including not being nearly as powerful in terms of light output, and having an incredibly short flash duration, meaning they won’t help freeze action when shooting handheld (or stop camera shake) as well as a traditional Speedlight would. Macro photography almost always requires you to stop down fairly far, or else you are required to focus stack because at brighter apertures the depth of field at 2 inches away from the subject is so thin it’s pointless. So it remains to be seen if these LED lights will put out enough power for a real macro photographer to make use of, but color us skeptical.
On the bright side (pun intended) someone looking for a cheap accessory for just playing around with macro photography will probably find this to be a great option. Polaroid is only selling these for about $40, meaning they are likely much more affordable than any other macro specific lighting you are considering. If you are interested you can find them now on Amazon .
Plus, in the event that they turn out to not be very useful for macro photography if you ever get hired to shoot at a UFO or Alien event you have the perfect accessory for your kits.