Garage soffit lights

[TonyWarrington]

Wanting to fit some lighting in the soffits around the garage to be controlled by PIR (probably 3 seperate zones as per drawing).
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Initial thoughts are I should use something like This with the necessary transformers for each zone (1 per zone).
I then came across This one which includes a transformer for each light and supplied with 50w lamp.

So I have a few questions

1. Is there a better/easier way to get what I am after?

2. Which one better single light and dedicated transformer or several lights off one transformer?

3. Any suggestions for a suitable PIR for each zone

 

[hairyben]

1. Better/easier? depends, what don't you like about what you've come up with? I'd consider CFL's if quality of light is not an issue, but probably not worth it if they're only on for a few mins plus the PIR must be rated for them, or use a relay.

2. Single transformers are much better.

3. suitable PIR? Guess you'd want a 180 deg, personally (and after too many failures of what most wholesalers stock) I carry steinel, but they're not cheap. I'd also consider two 270 deg sensers on the corners working in parallel to switch all the lights, rather than 3 seperate zones.

This work is notifiable BTW

 

[TonyWarrington]

Thanks hairyben

1. Better/easier? depends, what don't you like about what you've come up with? I'd consider CFL's if quality of light is not an issue, but probably not worth it if they're only on for a few mins plus the PIR must be rated for them, or use a relay.
Thought the plan was ok but wondering if the pros would do it any other way. Did consider CFL's then discounted due to reasons you mentioned

2. Single transformers are much better.
Looks like the 2nd choice then best bet and even costs a few pounds less

3. suitable PIR? Guess you'd want a 180 deg, personally (and after too many failures of what most wholesalers stock) I carry steinel, but they're not cheap. I'd also consider two 270 deg sensers on the corners working in parallel to switch all the lights, rather than 3 seperate zones.
The reason for 3 zones is due to the fact that we did not want to light up everything when we only needed access to zone 2 or 3 (dont want to upset the neighbours )

This work is notifiable BTW
BUGGER. I have to say this fact had not crossed my mind
So it seems I have 3 choices
a. Just do it without regard to notifying - not an option I would take
b. Notify the required authority and pay the fees. I assume there would be a fee for notification and another for inspection?
c. Employ a qualified spark. Probably the best option as he would sign off the work and possibly get the hardware at a lower cost than me