Stop guessing.
Do the math.

Solve for voltage, current, resistance, or power. Enter any two values.

Find the right current-limiting resistor for your LED. Don't fry it.

Decode bands to value or find the bands for any resistance. 4- and 5-band supported.

Calculate output voltage, or find R1/R2 values for a target output.

Combine resistors or capacitors in series or parallel. Add as many as you need.

AWG to resistance and current capacity. Pick the right wire.