LED Strip Light - Power supply issues
Most of these strips are laid out in a repeating pattern of three LEDs and their current-limiting resistors along a flexible circuit. There will be scissors marks every 10 cm or so.







simulate this circuit &ndash; Schematic created using CircuitLab

Figure 1. Cut along the dotted line.

If it's this type of strip then the LEDs are effectively wired in series parallel along the length of the strip. You can connect the strips end to end but it should be clear from the schematic that you're actually connecting the individual strings of LEDs in parallel.

If you daisy-chain the strips then be aware that the first strip has to carry the current for all the downstream LEDs and the copper may overheat. 

Alternatively wire each strip individually back to the PSU.



Figure 2. All you need to know.


You need a 12 V supply.
The current rating needs to be at least that required by the LEDs.


\$ 10~m \times 1.5~A/m = 15~A \$.

\$ P = VI = 12 \times 15 = 180 W \$.

Be careful daisy-chaining the strips. The start of the first one will have to carry the full 15 A, falling to zero at the end of the second. It would be safer to feed 12 V in both ends. That way each end would carry 7.5 A, falling to zero in the centre.