This 9W DC PIN TYPE LED bulb is not only economical but  beyond the energy saver bulb, LED bulbs save even more and live even longer. This  DC BULB ENSURES that your home is lit without the burden of electricity and without draining your battery. As compared to incandescent bulbs, LED bulbs will provide a longer life span and will leave you with savings in your pocket. At only 9W it replaces and produces light= to a 90W bulbEnergy Efficient. LED lights are up to 80% more efficient than traditional lighting such as fluorescent and incandescent lights. 95% of the energy in LEDs is converted into light and only 5% is wasted as heat.