I got an Inova Microlight at Target for $6.99. It has a hi/lo/strobe function, uses two CR2016 coin-cell batteries and can be opened by prying off one side. I can pry it off with my fingernail, but any small knife blade or even a ball point pen will do it. When it is opened, all the electronics stay put– the LED and swtich parts remain in place, so you aren’t chasing parts in the dark. The stainless steel retainer clip is great.
I just bought it and I don’t have any idea of battery life. It is bright and has a decent light pattern. It is a bit larger and heavier than the Photon’s. I’d say how much, but my scale doesn’t have the sensitivity– in other workds, not enough to matter much.
Here’s the manufacturer’s specs:
(see http://www.inovalight.com/site.html?ML-ov)
Light performance
Single super-brilliant LED lamp
Up to 33′ effective range
Up to 1-mile signal visibility
Lifetime LED
Power source
2 CR2016 (3 V) replaceable lithium batteries w/ 10-year shelf life
Red light requires 1 CR2032 battery
Light output per battery set
Up to 15 hours burn time
Operation
Constant on/off via sliding switch
Momentary on via internal button
Operating range -20º to +40º C
Body
7/8″ x 1 3/4″ x 5/16″
Impact resistant polycarbonate case
Translucent and opaque body styles
Attachment
Stainless steel quick-release clip
Light colors
White
Red
Blue
Green
Warranty
Limited lifetime warranty
