Hi,
I have a stock ebike with an Impulse Evo RS stock mounted system which works on 36V, but has two light connectors ( front and rear each outputting 6v) which seems to be enabled by default, even though the bike came brand new without lights. As I have a Chinese 3xCree headlight ~1000 lumens which has a died battery pack of 4x 18650 batteries outputting 7,2-8,4v I decided it would be easy connecting it to the 6v port and that it would just be dimmer, but It appears that there are other factors I have to consider.
1. It seems that the the headlight might have cut-off voltage controller and might not work with 6v. In such case I could try to open it and bypass it, but I don't know how safe that would be
2. It seems that the lights outputs of my bike have some limitations (I cannot find the exact values, but Bosch ones have similar and output 6v 8w for the front and 6v 0,8w for the rear light). The stock lights for my model are Supernova 160-200 lumens, but they put them only on the road versions and I have the MTB version. What would happen if I use the Chinese light which obviously has greater consumption? Would it just be dimmer, or would it not start, or would it demand higher power and eventually melt the stock wires?
3. I also have two 3v 2xAAA LED taillights. How could I safely connect them to the 6v 0.8W bike output. Just add the proper resistor (that should lower the current only, but should lower the possibility of overheating caused by the higher voltage) in series with one of them, or I should have DC-DC converter? Could I just wire both of them (as they are 3v each) in series, or LEDs don't work as normal bulbs? I know LEDs have forward Voltage and forward current but don't completely understand them and know how to measure them.
I like the idea of having stock-like lights connected to the main battery and don't have to charge/change batteries etc, but the original ones (Supernova 6v) are so expensive- the set of front and tail light costs around 200Euro. What is so special of the 6v ones that I haven't seen any Chinese ones?
If my idea is hard to accomplish I might use my Lezyne 900XL, which I use for helmet-mounting during night rides with my normal bike.
I have a stock ebike with an Impulse Evo RS stock mounted system which works on 36V, but has two light connectors ( front and rear each outputting 6v) which seems to be enabled by default, even though the bike came brand new without lights. As I have a Chinese 3xCree headlight ~1000 lumens which has a died battery pack of 4x 18650 batteries outputting 7,2-8,4v I decided it would be easy connecting it to the 6v port and that it would just be dimmer, but It appears that there are other factors I have to consider.
1. It seems that the the headlight might have cut-off voltage controller and might not work with 6v. In such case I could try to open it and bypass it, but I don't know how safe that would be
2. It seems that the lights outputs of my bike have some limitations (I cannot find the exact values, but Bosch ones have similar and output 6v 8w for the front and 6v 0,8w for the rear light). The stock lights for my model are Supernova 160-200 lumens, but they put them only on the road versions and I have the MTB version. What would happen if I use the Chinese light which obviously has greater consumption? Would it just be dimmer, or would it not start, or would it demand higher power and eventually melt the stock wires?
3. I also have two 3v 2xAAA LED taillights. How could I safely connect them to the 6v 0.8W bike output. Just add the proper resistor (that should lower the current only, but should lower the possibility of overheating caused by the higher voltage) in series with one of them, or I should have DC-DC converter? Could I just wire both of them (as they are 3v each) in series, or LEDs don't work as normal bulbs? I know LEDs have forward Voltage and forward current but don't completely understand them and know how to measure them.
I like the idea of having stock-like lights connected to the main battery and don't have to charge/change batteries etc, but the original ones (Supernova 6v) are so expensive- the set of front and tail light costs around 200Euro. What is so special of the 6v ones that I haven't seen any Chinese ones?
If my idea is hard to accomplish I might use my Lezyne 900XL, which I use for helmet-mounting during night rides with my normal bike.