The Glass Light Lens is an OEM part for GE microwaves. It covers the light bulb inside the microwave, protecting it from food splatters and ensuring even illumination.The lenses measure approximately 7" x 3". Causes of a bad glass light lens can include accidental impact, exposure to high heat, or general wear and tear. Symptoms of a bad glass light lens include: Cracks or breaks in the glass Diminished visibility inside the microwave Light not being properly diffused Potential exposure of the light bulb to food splatters This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.WB36X10071 (AP2030060) replaces 259723, PS247275, WB36X0945, WB36X945.