I am converting my living room into a billiard room and wanted to upgrade the lighting to make it brighter. I have 4 Sconces in this room with 150w T3 halogen bulbs - good for socializing but not for play Decided to try them to bring more light into the room and reduce heat/power consumption I ordered 2 first, to try them out and was very happy with the light difference compared to the other 2 halogen bulbs so I ordered 2 more.I can physically fit in these wall lights.We ended up doubling the brightness from 150w to 300w on each light and reduced power consumption from 600w to 120w (4 x 150w vs 4 x 30w) BTW I tried to see if they fit in my work light (2x300w) but the case is too big I deducted a star , because the first 2 glow bulbs didn't work (they look like used). Can't rate durability as they've only been in use for 2 weeks. Also replace my dimmer with an LED compatible one.