Motorcycle lens and the LED lamp can be installed at the same time, and shall not affect the circuit?
Can gm is 12 v, so long as you don't pick up ballast line can be connected in series, because you is the 12 v battery
Can be a switch control by an external switch to control
You increase the total power of about 155 w these lights, has exceeded the design of the general domestic 35 w, even though the battery, ignition key switch and headlight switch contact capacity is limited, so the best way is to add headlight relay, let the headlight received battery anode current directly through the relay contact, ground also another bold lines; Relay coil by the headlight switch control in order to extend the life of the ignition key and headlight switch contact, can avoid and round headlights lines within the original wire resistance pressure drop, and its heat. Small appliances is the electromagnetic switch, coil current through the magnetic drive large current contact, such as selection of 12 v dc relay contact current for 15 ~ 20. A, you can load 180 w ~ 240 w lamps. Also have to consider your motorcycle engine and rectifier charger whether can satisfy the requirement of the 20 ah battery charging, so as to avoid the battery often lose electricity scrap.