Fitting an LED floodlight - what size cable?

[Sponge]

I'm writing a shopping list for the installation of one of these LED floodlights.

Tech. Spec.

Technical specifications Sensor-switched outdoor floodlight X LED Home1 Silver
European Article Number (EAN) 4007841002688
Dimensions(w x h x d) 210 x 175 x 180 mm
Voltage 230-240 V/50 Hz
Sensor type Passive infrared
Output 198 LEDs; 12 W
max. output (resistive load, incandescent lamp) 800 W *
max. output (uncorrected, inductive, cos {#966} = 0.5, e.g. fluorescent lamps) 400 W *
max. output (electronic ballasts, capacitive, e.g. low-energy lamps) max. of 4 each, ? 88 µF
Brightness 720 lm
Efficiency 60 lm/W
Light colour 6700
LED life expectancy up to 50000 h
Floodlight positioning range 180° horizontally, 120° vertically
Detection angle 140° with sneak-by protection
Sensor swivelling range 180 °
Sensor tilting range 90 °
Reach 14 m max. (temperature-stabilised)
Response brightness 2-2000 lx
Time setting 8 sec. - 35 min.
IP rating IP44
Protection class I
Material UV-resistant plastic with aluminium heat sink
Version Silver
With lamp STEINEL LED system
Lamp replaceable No

* Output is 12W LED, but then they mention 800W incandescent?

Edit: I've just checked the manual and I think it's referring to 'Additional switching capacity', i.e. extra LEDs, bulb, or fan accessories can be wired to the floodlight.

My plan is to take the supply from a socket in the bedroom, via a SFCU. So, 2.5mm T+E from socket to SFCU, then a cable through the wall and pinned to the external wall for 3 foot or so, before reaching the light.

I just wanted to ask what diameter cable I needed from SFCU to LED?

If the light is just 12W and with 240v supply, does that equate to 0.05A? So would a 1mm cable suffice? I've read (here) that the 13A fuse should be replaced with a 3A one - does that still apply here?

 

[riveralt]

I just wanted to ask what diameter cable I needed from SFCU to LED?

A 3/5A fuse should be more than sufficient for your SFCU and flexible black cable (not T&E grey - it doesn't like being exposed to the elements) from the SFCU to the light.
Something like 0.75mm ² three core like this.
http://www.tlc-direct.co.uk/Products/CA0dot75F3B.html

 

[ban-all-sheds]

Tough Rubber Sheathed cable.