Battery And Brake Light Flashing

This is a very nice headlamp, without two levels of white light, a red light and a flashing red light.  Having the battery pack on the back makes it much easier to balance and the straps are adjustable over a wide range.

As many others mentioned in the reviews, these batteries are now new old stock, as the newest ones were made in 2022 and will arrive completely discharged. DO NOT give up on them - the charger will initially show an error (chamber and calibration light flashing) - keep taking the battery off and putting it back on, and eventually it will start to charge. The key is to not leave it in the charger if the charger is showing the error code, you have to remove and replace the battery until the charger shows that it is charging (chamber light and 50% light flashing). After a few hours the 50% light should glow solid and 80% should start flashing, and eventually it will charge fully

My APC UPS sounded off every few hours with beeps and a flashing red light to let me know it was time to replace the battery. I ordered online and the battery arrived sooner than expected. I installed it and it's been working fine since. The part I especially like, I didn't have to shut everything off to install.

I bought this a month ago when the battery died (I unfortunately did not notice the low battery flashing light indicator). The replacement battery arrived very promptly, was easy to install, and my backup is operational again — and just in time because a tornado hit here a few days later and I lost power for 8 hours.

but it is unsettling to have the upstream light flashing

Seriously, this thing is great. Just plop in up to 2 batteries, tells you their status and juices them up. They still have a good load, just take out the battery and skip the charge. Very easy to manage your set of batteries. Clear indication of battery status no reading, arcane, flashing / not flashing, is that amber or orange.... Works well in car also and does not require a power brick just a universal 2 prong power cord. Charging is quick but not overly (quicker = less battery life due to the heat). I have use mine with Fujifilm X I understand other adaptors are available. Most fujifilm users have or should have multiple batteries: I Higly recommended this

I bought this light about 3 years ago. Great light. Unfortunately it had a brake at one of the plastic connectors. I contacted them and had a brand new light in 10 days. Great company.

I loved thie, because it is thin and light. But, be carefull , this is my second one. It is easy to brake. I loved how is easy to buy on bh! great!

I needed a lens for low light situations that would not brake the bank for Run and Gun type of shooting. Did some research and was looking at the Sigma 1.4 as well as Sony E Mount 35 1.8 - i wanted a bit wider and faster than the Sony so choose the sigma. Used it several times and it works very well with my Fs700 in semi auto position. At times in very low light - the push/auto is not perfect so I have to manual focus it - but for the money I cannot complain. I have used several times and the images are sharp. I did notice that it might have slight color shift to the warmer side but again I can deal with that. Good lens for the money -

I have three of these and they work great. I really like the roll brake on the side.