This was an acceptable way to estimate brightness because most incandescent bulbs have the same amount of efficiency.īR30 LED lamps are far more efficient than incandescent BR30 bulbs. You might be accustomed to thinking of bulb brightness in terms of watts - a 40 watt bulb is brighter than a 60 watt bulb.īut don't forget that watts are a measure of electrical energy in, not necessarily the total light output. 2) Determine how many lumens (or wattage equivalent) you needįirst and foremost, you will want to ensure that when you replace your incandescent BR30 lamp with an BR30 LED, you are getting just as much brightness as before. Mechanically speaking, this is typically accomplished with a slightly bulged and frosted diffuser cover on a BR30 LED lamp, as opposed to a clear, collimating lens on a PAR30 LED lamp. Although they are similar in size to PAR30 LED lamps, BR30 LED lamps primarily differ in their wide beam angle. LED lamps have carried on the BR30 form factor name. So, the "30" indicates a lamp diameter of 30/8 inches, or 3.75 inches. Next, we look at the number "30." As in most other lighting products, the number refers to the lamp diameter in eighths of an inch. By having the reflector flare out, the light emitted from the filament is able to be emitted across a wide angle. The reason for the bulge in incandescent versions of the BR30 lamp is to enable a wide flood beam of 120 degrees or more.
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