Is this bulb any use for growing?

I have a very small lowryder growing on my window sill at the moment and it badly needs some light. The bulb i have in my lamp is a 60w reflector bulb. i dont know fuck all abought lighting but it says R36 60W E27 on it. Can anyone explain what these letters mean and what to look for when buying a small grow bulb on a â?¬10 budget?

buy yourself a daylight compact fluorescent bulb. it will be in the blue package. make sure it is the 100W and is the DAYLIGHT BLUE version. NOT the YELLOW or RED.

Power to the Peaceful.