Light Brightner/dimmer

Thread Starter

evision

Joined Jan 8, 2009
1
I need to support a local Snake park for their immediate problem. In winter the snake park is being lit by Incandescent Lamps to provide heat to the snakes. The problem is : When the Lamps are ON, all the heat is applied instantly, giving the snakes a kind of heat shock !

I need a circuit that would gradually brighten/dim the lights at a flip of a switch. The time involved is about 1/2 hour.

Pl. help. Thx.
 

Bernard

Joined Aug 7, 2008
5,784
' Just looked at the insides of a comercial light dimmer, 600W,to see if it used a pot. or rheostat, as hoped it was 180kΩ rheostat. Idea: substitute a light-dependent-resistor for rheostat and use easily controlled LED lo V ramp ckt. Found an assortment of LDRs which should work at Electronic Goldmine. If thei seem workable to you I'm sure some member cad come up with a LED control.
 
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