About BulbBrief

Buying a light bulb should not require a degree in photometry. BulbBrief exists to give ordinary people one clear, trustworthy answer.

The problem

The bulb aisle is a wall of confusing numbers: lumens, watts, Kelvin, CRI, A19, BR30, E26, dimmable, daylight, soft white. Most online calculators make it worse by demanding lux and foot-candle inputs you have no way to know.

Our approach

BulbBrief asks plain questions about your room and does the lighting math behind the scenes. You get a single shopping sentence you can take to the store or paste into a search box — plus the reasoning, if you want it.

Private by design

There are no accounts, no cookies, and no analytics that follow you. Every calculation runs locally in your browser. If you share a result, it travels only in the link you choose to send.

Honest about money

BulbBrief is free to use and supported by affiliate links. The shopping links under a result open Amazon and carry our Amazon Associates tag, so a qualifying purchase may earn BulbBrief a small commission at no extra cost to you. The specification itself is calculated from your room before any shopping link is built — commissions never influence the recommendation, we do not rank “best” bulbs, and we do not claim to have tested products. The full details are in the affiliate disclosure.

Not professional advice

BulbBrief gives helpful estimates for everyday rooms. It is not a substitute for a licensed electrician or a professional lighting designer, especially for wiring, new fixtures, or unusual spaces.