LED lights are gradually replacing halogen lights, but be aware there is no equivalence in "watts" between the two. The "watt" is simply a measure of consumption of electricity. Thus it is very hard to choose a light based just on watts. We do sell rechargeable lights, but only internal charging lights. These are lights in which you must open the light to recharge the batteries. Of course this is more difficult than external charging lights, but it is much safer, eliminating much of the risk of failure or even explosions.