The on-off ceiling switch is a great switch because unlike the many dimming switches out there, this one is straight on/off with a relay, so is compatible with energy saving lightbulbs. The problem with the switch is that it defaults to Off, so when you first power it up, the light is off and you need to find a remote to turn it on. That's OK for the householder who is familiar with it, but not OK for the visitor to the house who cannot work out why the light won't work. A better configuration would have been to have the switch default to on so that your light can behave just like a normal switched light, with a remote override when you want it.
That means the behaviour is now;
Turn on at the wall - light goes on
Turn off at the wall - light goes off
Turn on at the wall and turn off with the remote - light goes off
On at the wall/off with with remote - turns on with the remote, or turns on at the wall by turning off then on again.
The last step isn't perfect, but it's a darn sight better than always off.
WARNING: It should go without saying, but this project involves modifying a switch for mains electricity in a way that the manufacturer does not support. Only attempt it if you are happy with modifying electronics. Also, it will of course invalidate your warranty, but if you didn't figure that out, you really shouldn't be doing this!
Step 1: What You Will Need
A Bye Bye Standby On/Off in ceiling switch
A 24V DC 10A/240V relay that defaults to on that is the right size, e.g. an Omron G5Q-14-EU 24DC
Soldering iron and desolderer
A drill with a 1mm bit
Step 2: Crack Open the Switch
Step 3: Take Out the Old Relay
Step 4: Insert the New Relay
You then need to add a new hole to the circuit board. Drill a 1mm hole just above the original one for the new default-on pin to go.
Solder the new relay in, bridging the gap to the new pin with solder.
Step 5: Re-assemble the Case
Put a couple of drops of superglue on the case and put the lid back on. Now you have a default-on bye bye standby switch. Wire it up in the ceiling as described in the manufacturer's instructions.