YONGNUO 19V 5A American Standard AC Adapter for Yongnuo LED Video Light YN900

This adapter works great for my YN-900, and the L-shaped (90 degree) barrel connector makes the connection more stable. I had a straight barrel connector on my YN-300III and it doesn't stay in anymore, have to hold it or tilt it to keep the light on. This one is high quality but pricey, but it seems hard to find any other options on Amazon.

Plain and simple, it works and you'll need it for your YN900. While the YN900 DOES take batteries...you'll need a ton of them to make it through any event of any any length. Better to grab this and just deal with the need for AC power ...or settle for the YN600.A little bummed this was required for the YN900 and that it's DIFFERENT than the one for the yn600/300. However, it's pretty easy to understand when you see just how much more light the yn900 puts out.

Works for my YN-216 and YN-900, no problems! Decent cable legth too. Can duct-tape the brick to the bottom of the lighting stands for more stability too.

Does not work

SO far this adaptor works great, feels solid, and has a nice long cord.

It's working seemingly well thus far, so I'm good.

A power supply is one of those things -- it either works, or it doesn't. In this case, it works perfectly with the YN-900 lights I have. I can't tell you how many Sony video batteries I have -- and there are never enough. The YN-900 does pretty well for battery life when running at relatively low power. But crank up into the 90+ range so the fan comes on, and you're eating batteries like an Indica-fueled frat boy with the munchies. Sooner or later you want to just plug 'em in -- and for that purpose, this is what you want.

You'll need this bad boy for your larger YN lights as a backup for when your batteries run down or just to power without the weight of the batteries on the light. I usually strap body of charger to tripod.