ARC 4+ How Flicker Proofed?

Status
Not open for further replies.

sharkeeper

Enlightened
Joined
Oct 21, 2002
Messages
347
Location
In the sticks of the Badlands of the East
Funny sounding topic I know...

BOTH my L4 and LSH-P have this issue when the cell's voltage drops to the point of effective expiration. The light output falls, the current drops, the cell terminal voltage increases slightly so the light blinks momentarily. This can go on for several minutes sometimes longer until the output stabilises.

Does the 4+ have an "anti hysteresis" feature that reduces or prevents this potentially annoying mode of operation?

I know most will say the light is telling you to change a battery but you know I can get quite a bit of useful (2X ARC AAA brightness) out of these lights for another hour + once this hopping settles down.

Just curious. I suppose I will find out in a few days when my 4+ gets here.

Cheers!
 

paulr

Flashaholic
Joined
Mar 29, 2003
Messages
10,832
The Arc4 microprocessor notices the falling voltage and drops the brightness by one step. Peter posted a graph showing this at work. Steady brightness for 1.5 hours or whatever, then step, step, step... . Pretty neat.
 
Status
Not open for further replies.
Top