1. I parallel solder the 30 LEDs and use one 5watt (very big) resistor to control the current, and use a thicker (but less) wire, or
2. I can use a resistor for every three white LEDs. And everything would be OK. Only thing is, there would be a lot of wiring. For every spike, we could be looking at 5 wires. Multiply that with 15, that is a lot of wires, which WILL definitely cause a black shadow in the tube.
Initially, I put 15 LEDs and they looked OK but
I m not sure what happened here as the second
half was very dim. So, I connect the power direct
to the second half and the first half dims. Weird
I m not sure what happened here as the second
half was very dim. So, I connect the power direct
to the second half and the first half dims. Weird
Finally, I paralleled the 30 LEDs with two resistors
and they got quite hot after a while. This was because
30 LEDs means about 0.6Amps passing through the
resistors. So, I have to get more than 5watts for this
and it can only be switched on for a few seconds. Or,
I can develop a circuit to manage them. Hmm.......
and they got quite hot after a while. This was because
30 LEDs means about 0.6Amps passing through the
resistors. So, I have to get more than 5watts for this
and it can only be switched on for a few seconds. Or,
I can develop a circuit to manage them. Hmm.......