I’ve tried the curly CFL bulbs, but they give awful light and are a constant worry with their mercury content and reports of fires. The LED lights I have tried give feable light and are still quite expensive. I’m sticking with the good old incandescent bulbs, but have been buying the longer life version. The savings in electricity with these bulbs is over blown and simply turning off lights probably works as well.
That’s why I was for LEDs semiconductors which don’t get that hot, encased in thick plastic, don’t have the same toxicity concerns. Plus LEDs are really long lasting. Over time, they can be worth it, the drawback is the current budget, which not everyone has.