First Alert Smoke Detector Flashing White Light

This is the second Nest thermostat I have purchased along with a Nest Protect smoke and CD detector. I moved my original Nest to replace an upstairs old thermostat when the new 3rd gen Nest came out. The Nest does everything advertised and more. I highly recommend any of the Nest products.

[This review was collected as part of a promotion.] These are great for use on a smoke detector, will last a long time before replacing

[This review was collected as part of a promotion.] I get these batteries for my smoke detector, and I'm so happy with this brand. They are long lasting and great!

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.

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.

but it is unsettling to have the upstream light flashing

Gray, or is it grey? Either way, a lot like Gandalf before (spoiler alert) he becomes the white wizard.

This juice makes tons of thick white smoke, And a gallon will last long time.

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!!

Awesome smoke !! I used it for Halloween!!