Honeywell Hot Water Heater Flashing Red Light

Bright white light is very bright. Red/red-flashing light is cool -- not sure if I'll ever use it. Good fit and balance (with batteries in back). Lightweight and comfortable. Looks suitably geeky. Very happy with my purchase.

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.

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.

We have a thermo pump for a/c and heater and a propane heater/water....easy to install, to configure etc....self learning is very dependable....the best part is that you can control the temperature from afar with the Nest app....We love our Nest thermostat!!

but it is unsettling to have the upstream light flashing

I have used Eneloop rechargeable batteries for a few years and they are excellent and durable. I used it on a gas water heater that needs batteries to create the spark that ignites it. I was unsure if it would work, it works perfect.

This flash head removed the Hot Spot when I am flashing a window pull for Real Estate work. I did have a small problem getting it to go on the first time but if you twist is slightly back and forth while pushing down on the head it goes right on. I had the same problem others did but could not see why it would not work. I would imagine the pins and slots are just off a very slight amount.

I keep the Poly-Steel 700 in my truck because of the fact it has the red flashing light on it. If I would have trouble I can just turn it on and stick it to the truck since it also has a magnet. It has the zoom on the front end and all the lights are bright. I have several Coast lights and all of them are high quality and well designed. I will always be a Coast customer. The warranty and customer service is second to none.

I bought this so I could be in more pictures with my kids! Totally beats running back and forth from the tripod to race the flashing red light!

Brighter than I expected on high white mode. We must cycle through all 5 modes, but white has 3, than red (flashing red is included). I hand hold it to cross the street so people can see me and I don't hit the curb. Also helps to avoid puddles in the street and toys in the driveway! AA convenience is King!!