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View Full Version : SPST Switch + Relay or DPST switch for MR Luke Board and Lux LED



Tekka
03-31-2008, 05:51 PM
Hi, i was wondering what would be better for my setup?

Using a SPST switch to activate the MR board and then have the LED output of the board power the Relay so the LUX will get power from the battery

or

Using a DPST switch to power the board and the Lux at the same time

The reason I ask is because i don't want the sound and light to be off sync when powering down.

But i have some questions, since im powering the relay am i using more energy therefore cutting down on my run time or is the energy consumption of the relay not that much?


also what is better relay to use 5VDC 1AMP or 3VDC 1AMP

also where should i wire the resistor

Directly after the Batter pack or after the relay to the lux?

I'm planning on using 4 NIMH 1.2 AA batteries