soapy
Senior Member
I just converted a couple of dozen 42 watt cfl bulbs over to 38 watt leds with 5000k color. 35,000 hours bulb life and 4000 lumens per bulb. I took out the ballasts and used a small pigtail light socket. FEIT electric bulbs were $39.95 each at Home Depot. Pig tail $2. These are cob style bulbs. I also put some led bulbs that look like the curly cfl bulbs in some smaller fixtures with 25000 hour rating. While researching I found led bulbs that can be put in old mh fixture without removing the ballasts. I still have a couple dozen T5 HO lights that have been in use for 8 years and have not replaced a bulb or ballast.