Triangular LED Undercabinet Lights - Low-Profile Design

Can you advise how these are fitted, are they surface mount, or will i need to drill a hole in the bottom of my cabinets
The images you see show the lights in place on the underside of a kitchen cabinet. The tidiest and neatest installations normally means that the thin wires carrying the DC supply are tucked up behind the wall units (which normally have a void) and wall tiles cover the join between wall and cabinet. You do not need to drill or Rebate into the cabinet.

I like these lights in warm white but do not want any with a sensor. Is it possible to fit some lights e.g. 6 under kitchen shelves to work only with a wall switch?
Yes, it is possible to install the lights from a wall switch. You would need to purchase the fitting without the sensor.

Are these lights dimmable?
Yes, These can be dimmed by Sensor Operated Dimmer for LED Lights. This can be found at the bottom of this listing under the section "We have the following accessories you may be interested in"

We have a run of wall units approx 3.35m. Do you think 3 of these would be enough to light that stretch?
Yes, 3 would be enough if they are spaced out right.

I need 5 lights in one run. Do I need the 3 light pack and 2 slaves, or 3 light pack and 2 individual lights? And...is there a chance of getting these lights in polished chrome?
The slave units plug into the unit with the sensor. There are only two sockets in the sensor version. So for a run of 5 lights you will require 2 sensors and 3 slaves. Sadly we can only supply this unit is a matt chrome finish.

You mention that it is intended to be wired into a fused spur, can it be wired into a light switch.
Any lighting fixture can be connected to the lighting circuit and operated by that room`s light switch. A separate switch could be installed if preferred or the existing switch changed for a 2 gang switch. To keep disturbance to a minimum the power is often supplied by breaking into the ring mains circuit and adding a fused spur. When using a fused spur the protection is provided by a 5 amp fuse. On the lighting circuit protection is provided by a 6 amp miniature circuit breaker at the distribution board. Either way is okay

How is the power supply fed - through 13a socket or by perm wiring? How long is the lead on the power supply? How long is the lead from the sensor light to the power supply? How long is the lead from the sensor light to the slaves?
Each triangular light has a lead 2400mm long. The power supply has a 240v lead 10mm long and a 12v lead 1500mm long. The power supply is double insulated and supplied without a plug as it is intended ti be wired into a fused spur. A 3 pin plug may be fitted if this is easier for your installation.

How much power do these units draw. Plus based on 35w. does this mean that a set of 3 is like having a 100w bulb under your units?
1.65 watts each. 3 x 35w = 105 watt.

How many LED`s does each unit have and what is the output?
Each unit has 24 LEDs and gives the same lights as a 35w halogen capsule. They are really impressive and save quite a bit of money in relamping and running costs - not to mention the low heat.

On one side of the kitchen I need to fit 3 lights and on the opposite side i need to fit 2 lights. So my question is that can i operate the two sides independantly by getting 2 sensor lights and 3 slaves, but connecting them to the one 15w Power supply with 6 way port? Or would I need two power supplies?
Your proposed design would work well as long as you have a way of getting the DC supply from one side of the kitchen to the other. If you need to extend the cables use a flex with a larger conductor to avoid issues with voltage drop.

whats the max number of slave lights what max range is the sensor can be activated
You could have up to 6 lights on one power supply. However the fitting with the sensor on it only has 2 ports so u could only connect to 2 slave lights. The range of the sensor is not a great deal. Only 5cm to be exact