Join Date: Oct 2009
Location: England, currently dividing my time between university in Guildford and home just outside Reading
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Trying to jury-rig an LED light...
I'm trying to make an LED front light out of two old solar-powered garden lamps, and I need some technical advice. The lamps have 2 AA rechargeable batteries in them, and I've just taken the light and reflector assemblies out of them. I'm thinking I'll just hook them up to two rechargeable AAs and a switch, and I'm planning to run them in parallel. The problem I have is that the lamps have some sort of control circuitry in them (they used to turn on when it got dark, until they got water in them), and I'm not sure I won't put too much current through the LEDs if I run them without the added resistance of the control circuitry. Is this likely to happen? Do I need a resistor in series with the LEDs? Each reflector has 3 white LEDs in, wired in parallel, and there are only two reflectors.
Thanks in advance