I had an idea for a Halloween scene that involves a barricade warning light.
Bunnings sells a Whites branded one for $15 that takes one or two 6V lantern batteries.
I got mine for $10 from a local 2nd hand / surplus shop.
It has 2 LEDs, recessed switched for on/off and steady/flashing modes.
It also has an LDR (Light Dependent Resistor) inside so that it turns off during daylight hours.
connector tail to the original battery pads. It seems to power the unit just fine.
The Li-Po will have to be removed for recharging of course.
The fully charged 1200mAh Li-Po cell powered the unit (flash mode) for approx
72 hours continuous operation. Towards the end the flash rate increased markedly.
At least it doesn’t look brand new now!