What is br30 vs br40?

The difference between a BR20, BR30, and BR40 is actually the size or diameter of the light bulb. The number represents increments of an 8th of an inch. For example, a BR30 is 30/8ths of an inch or 30 divided by 8 which equals 3.75″ in diameter.Click to see full answer. Similarly one may ask, will a br30 fit an br40?For general lighting, most cans are 4″ or 5″ or 6″. For 4″ cans, you cannot choose BR40 bulbs — they’re too big. For 5″ cans, a BR30 will fit with a little space to all sides while a BR40 will fit with little to no space on the sides.Also, what does br40 bulb mean? BR40 is a large reflector flood lamp. It is the largest of the R-style flood lights. The “B” stands for “bulged”, the “R” stands for “reflector”, while the “40” represents the diameter of the face of the bulb, in this case 40 (1/8) inches, or 5 inches. Simply so, what does br30 mean? BR stands for “Bulged Reflector” – a reference to the bulge outward as one travels away from the socket, or flared shape of the lamp body. This is contrast to a PAR or MR shape bulb. The reason for the bulge in incandescent versions of the BR30 lamp is to enable a wide flood beam of 120 degrees or more.What is the difference between par30 and br30 light bulbs?PAR30 bulbs are commonly used in both recessed lighting fixtures and track lighting, so they come with short neck and long neck options to accommodate this usage. PAR30 short necks are more often used in track lighting while the long necks are often used in recessed lighting cans. BR30 bulbs do not offer this option.