Upgrading bathroom lights Danger???

[needsomeadvice]

hi all, i have just purchased and installed a bathroom mirror (square) with the lights inside that shine on your face when brushing teeth etc. my question is can i upgrade these bulbs, they are 12v 5w bi pin halogen lights, in the insrtructions it says do not exceed max wattage which is 6 x 5w!, the mirror lights are not bright enough and ideally i want to fit 10w bulbs, why cant i fit these what is the danger will it overheat or something,?, i could upgrade the transformer?, thanks for help phil

 

[BigJon]

If you upgrade the lamps the chances are you will need to upgrade the transformer.
The danger of upgrading the lamps is the lampholders and lampshades/covers overheating and melting due to the heat,
Probably best to stick to the manufacturers recommendations or take it back and get a brighter one.
Probably not what you wanted to hear.