I have also converted my fogs to DRLs. The concern of using the stock 55 watt fog lights on a regular basis is they will eventually discolor (read ruin) the plastic cover. If you use the 55 watt lights for a period of time put you hand on the plastic headlight lens and it is hot; very hot.
I am using the fog lights for looks only. I have gone through a number of LED lights. I tried to match the color of the factor Xenons lights and could never do it. Most were too white.
Last year I installed some cheap LEDs from China. They are "warm" in color and have the appearance of the stock lights. They are not white. At $1.74 each they are worth a shot if you're thinking of a change.
H7 Warm White 18-SMD LED Car vehicle Bulb Fog Driving Daytime Light Lamp 12V | eBay