help rigging up leds

[monsterberry]

hey guys ive just picked 2 led light unites there made for sheds and they run of 3 AA batteries i want to run them on one of my nano reefs each unite holds 5 leds (not much) i allready have a nother light unit a T5 on the reef but i want to add these as an extra i want to link them to a plug so i dont need batteries any ideas how i should do it im realy stuck

 

[CA-Delta]

Sounds like you are going to need a transformer.
I hate to say it, but, it may not be worth the expense.

 

[CHOMPERS]

You need a "wall wart" transformer like a cell phone charger. You'll need to do a little math to find out what size you'll need. How many batteries does each unit take?

Basically you should expect to pay between $5-$12 for a used transformer/charger. Look in your phone book for an electronics surplus store.

 

[CHOMPERS]

How many batteries does each unit take?

3 AA batteries

Sometimes I can be totally brain dead.

 

[CHOMPERS]

Hook them up in parallel and use a 4.5v transformer (or slightly larger).

What is the wattage draw (or amps) of each unit?

 

[CHOMPERS]

Hook them up in parallel and use a 4.5v transformer (or slightly larger).

Actually, it would be easier to find a 9v charger and hook them up in series. The amp rating of the transformer will need to be larger though.

 

[monsterberry]

thanks for the reply youve give me some good ideas ill have a mess around