I might be pretty stupid
- Thread starter snipe_lee
- Start date
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Marduke
Flashaholic
If it's 3xAAA, it's almost a sure bet.
Rossymeister
Enlightened
Usually You Can Visually Tell The Difference (YMMV), The Output Will Drop Considerably As The Battery(s) Deplete.
When A Light Is Regulated, It Will Stay The Same Brightness Throughout The Life Of The Batteries.
When A Light Is Regulated, It Will Stay The Same Brightness Throughout The Life Of The Batteries.
qwertyydude
Flashlight Enthusiast
- Joined
- Aug 10, 2008
- Messages
- 1,115
Finger lick test, lick your finger and place it between the rear contact and negative terminal. If there's a faint glow it's direct drive if not, regulated.
don't quite understand what u mean, damn i must be stupid
Youfoundnemo
Enlightened
Complete the circut while adding ristance, the human body has much higher resistance to current flow than aluminum does so if the light emits a faint glow its direct drive
kelmo
Flashlight Enthusiast
What is the make and model of the light?
PhotonWrangler
Flashaholic
Turn it on and hold it next to an AM radio that's tuned to an empty spot at the low end of the dial. If you hear a buzz or whine, it's regulated. If you hear nothing, it's direct drive.
Gunner12
Flashaholic
What light are you looking at?
The easiest is probably to put your finger across the back of the light with the tailcap unscrewed. The resistance of our body should prevent regulated lights form working but will let the LED/s light up very dimly in a direct drive light.
The easiest is probably to put your finger across the back of the light with the tailcap unscrewed. The resistance of our body should prevent regulated lights form working but will let the LED/s light up very dimly in a direct drive light.
carrot
Flashaholic
Lithiums are the same voltage, or very close at least to the voltage of alkalines. Most LED's/circuits can handle the slightly higher output. (1.5v for AA)
:laughing:
Jarl
Flashlight Enthusiast
top of the second page.
http://data.energizer.com/PDFs/l91.pdf
You'll be driving the LED beyond what it's expecting. This will most likely reduce life, whether it's noticeable or not is another matter.
http://data.energizer.com/PDFs/l91.pdf
You'll be driving the LED beyond what it's expecting. This will most likely reduce life, whether it's noticeable or not is another matter.
