I bought this sign $2 at a yard sale it has no power supply. Light bulbs are plastic with an LED inside. 8 LEDs wired in parallel. There is a place to plug in a power supply/transformer but voltage is a mystery. All the lights are wired in parallel, there are no other parts, no resistor.
It will not light up with 1 AA battery. It lights up very dim with 2 AA batteries in series. It lights up brighter with 3 AA batteries in series. It is still not very bright with 3 batteries at 4.5v.
I can not find a store with replacement light bulbs I was hoping to find a voltage on the light bulb package.
I have a 12V power supply with the correct plug. 12v is probably too much it might burn out all the LEDs.
What voltage are these 3/16" diameter LEDs?
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It will not light up with 1 AA battery. It lights up very dim with 2 AA batteries in series. It lights up brighter with 3 AA batteries in series. It is still not very bright with 3 batteries at 4.5v.
I can not find a store with replacement light bulbs I was hoping to find a voltage on the light bulb package.
I have a 12V power supply with the correct plug. 12v is probably too much it might burn out all the LEDs.
What voltage are these 3/16" diameter LEDs?
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