I have 2 commercial design vintage preparing lamps ... these are very heavy lamps and both work fine; one Flexo 20lb base w/swivel arm & (2) 15 watt halogen bulbs light-$40 ... and one Luxo 20lb base w/swivel spring arm w/one circuline fluorescent + one incandescent bulb lamp that can be switched on separately or together-$50 ... click the contact tab above for my details.