7 months ago
Chief Petty Officer 2nd Class)
1: My Elke has a small 3 bladed plastic prop with a diameter of 23-25mm.
2: I have used LiFe batteries as substitutes for Lead batteries.
3: Regarding light, I seldom add these to my models, but when I do, I used LED's and add a resistor for each, based on the diode voltage and required mA. You can buy small LED's with wires that are mad to handle a range of voltage. Some of my friends at the club is using them https://evandesigns.com/ (Be careful it's located in the US so TAX may applies when ordering.
4: Always a good idea with a fuse. If you want to be safe you may add one between battery and ESC and ESC and motor.