E-Simpo 6pcs 2G11 4-Pin H Lamp Fluorescent Light Holder 2G11 Horizontal Screw-Down Light Socket Base PL CFL LED Light Socket Lamp Holder 500V 2A (2G11 - Amazon.com
LH0561 26w, 32w, 42w G24q-3, GX24q-3 base 4 pin CFL lamp holder/socket with 2 hole vertical mounting
E-Simpo® 6pcs 2G7 4-Pin H Lamp Fluorescent Light Holder 2G7 Base Horiztonal Single Head Tombstone Lamp Socket for LED Fluorescent Tube(2G7) - Amazon.com