I have 4 Amber LEDs (I don't want to use white - bugs collect around white lights).

I already have the solar panel (21-Watts) and the battery (17-Ah) - which is charged using a Morningstar Sunguard-4 charge controller.

I have my LVD (Low-Voltage Disconnect) boards - that also have an InfraRed (IR) switch built in.

Sooooooo... hooking it all together, I get an Amber porch light that puts out enough light to see the front porch at night - and doesn't attract bugs (I've already tested this bit).

When I drive up - I grab a handy IR remote controller - aim it at the IR sensor, and ZAP!! on go the lights! (using a handy IR pistol - as used in laser tag - I can get over 40 feet of distance)

Or - if I leave them on when I leave - and the battery depletes to the LVD drop-out level (it'd take many hours to do this... probably 8 or more), then the LVD controller will disconnect the battery - which of course turns off the light.

Anyway... there are many ways to achieve what you want to do. I say - try something - if you don't like it - re-examine the problem, and try a different approach.

Regards,