> for this reason they are mainly used where the price and power efficiency outweighs the limited visibilty I always thought these lamps were inefficient, whic

> for this reason they are mainly used where the price and power efficiency outweighs the limited visibilty I always thought these lamps were inefficient, which is why they are being replaced with LEDs, but apparently they output up to 200 lumens per Watt which is better than most household LEDs.