AA電芯轉火牛

Question

我有８個LED燈仔.每個燈仔用2粒AA電芯.如果我將佢連接起用火牛發電.我應刻用幾多V火牛.怎樣連接才能令到每個燈仔都一樣光度?

Answer 1

most led take 4.5-5v and if you connect them in PARALLEL .3 rechargable AA batteries
are good enough. No need to an adaptor, but if you do, 4.5-5V , 500ma-1000ma is ok.
( REMEMBER Amp the current must not be big, it will blow those LED away.)

you can have all the led have the same power.

|-O-|
|-O-|
|-O-|
|-O-|
|-O-|
|-O-|
|-O-|
|-O-|
+ - (4.5-5V, 500ma-1000ma) ( cell phone adaptor is the best)

alien