Power saving on Epson 1670 Perfection?

[Mister Shed]

Having had a Umax scanner with a power saving feature, I've just got an
Epson 1670 Perfection. Maybe it's just me, but I can't see any feature to
power down the bulb - is there one?

Thanks

Mr S

[BudMan]

After it sits for a while the scanner will go to sleep.