The Energy and Water Ministry's regulations banning the sale of the classic 60 and 100-Watt incandescent light bulbs took effect on January 1, but the ministry's power-friendly plan has one significant hitch – it fails to detail what action – if any – will be taken against those still selling them against regulations. The bill aims to align Israel's energy code with those of the United States and the European Union, which now also ban the sale of incandescent light bulbs. The latter are notorious for guzzling up electricity – up to 90% of their power consumption is wasted on giving off heat. Related stories Israeli firm brings light to poor countries Poll: Economic crisis good for the environment Retailers and wholesalers in Israel, like in the US and EU, are now required to carry only energy-efficient light bulbs that use roughly 25% less electricity and have a longer shelf life. Still, the Energy Ministry seems to have left one important question unanswered – what will happen to retailers and wholesalers who keep selling incandescent light bulbs, if only to finish off inventory? End of an incandescent era (Photo: MCT) The ministry wants to make such violations punishable by a fine of NIS 1,000 (roughly $260) per bulb, but was late in submitting the punitive recommendation to the Justice Ministry. The Energy Ministry said that "the new energy regulations are meant to promote the conservation of energy and bar the import and sale of inefficient bulbs and electrical appliances, as part of the ministry's national energy efficiency plan. "The plan aims to reduce power use in Israel by 20% by 2020, in accordance with the government's decision in the matter." The Justice Ministry added: "The (regulations) are currently undergoing their final review and will then be forwarded to the Constitution, Law and Justice Committee. The regulation can still be enforced." Amir Ben-David, Tomer Pratt and AP contributed to this report Follow Ynetnews on Facebook, Twitter and Google+