The lamp alone will not be enough for plants, it looks like a tiny halogen bulb.
If the tank gets enough light from the window then it could be brilliant for plants, and the halogen light could just be use for viewing in the evening, kinda simulating dusk. However your going to need to be prepared to deal with however much light the tank is receive to avoid algae issues.
That probably means dosing EI heavily and/or CO2 and/or shading the tank in summer, while stopping with any ferts/CO2 in winter.