Ordering Lamps and Lighting Fixtures by Mail: Wattage, Wiring, and Fit
Lighting is one of the few home categories where the wrong purchase isn't just a style mismatch — it can mean a fixture that's electrically incompatible with your existing wiring or too dim for the room it's meant to light.
A pendant light photographed in a spacious, high-ceilinged showroom can look completely different hung above a standard eight-foot ceiling at home, and a table lamp that reads as substantial in a product photo, shot with nothing beside it for scale, sometimes turns out to be twelve inches tall. Lighting is a category where the numbers in the listing matter far more than the image.
Scale: the measurement most listings bury
For pendant and chandelier fixtures, the two numbers that matter most are overall diameter and the minimum-to-maximum hanging height (adjustable via the chain or rod). A common rule of thumb for a dining table pendant is a fixture diameter roughly one-third to one-half the width of the table, hung so the bottom sits 30 to 36 inches above the tabletop — a fixture ordered without checking these numbers against your specific table and ceiling height is one of the most common lighting mail-order mismatches.
For table and floor lamps, check the listed height against something in your own room for reference — a table lamp's proportions only work in relation to the surface it sits on and what's beside it, which a catalog photo staged in an empty studio can't convey.
Watts, lumens, and what your fixture can actually handle
Older buyers in particular still shop by wattage out of habit, but wattage measures power consumption, not brightness — lumens measure actual light output, and an LED bulb produces far more lumens per watt than an incandescent one did. A fixture's maximum wattage rating, printed on the socket or in the listing, is a hard electrical safety limit and should never be exceeded even with an efficient LED bulb, since it reflects the heat the fixture's wiring and shade material are rated to handle, not just brightness.
- Check the bulb base type before ordering, not after. Standard medium base (E26), candelabra base (E12), and specialty bases are not interchangeable, and a fixture listing that doesn't specify base type is worth a question to the seller before you order bulbs separately.
- Dimmable fixtures need dimmable bulbs and compatible dimmer switches. LED bulbs marketed as dimmable can still flicker or buzz on an older dimmer switch designed for incandescent loads; checking dimmer compatibility against the specific LED bulb brand avoids a frustrating troubleshooting process after installation.
- Color temperature affects how a room feels, not just how bright it looks. Warm white (around 2700K) reads cozy and close to traditional incandescent light; daylight (5000K and above) reads cooler and more clinical. Matching color temperature across fixtures in the same room avoids a mismatched, patchwork look.
Wiring and installation reality
Plug-in lamps are straightforward mail-order purchases with no special installation knowledge required. Hardwired fixtures — most ceiling and wall-mounted pieces — are a different matter: they require the power off at the breaker, and in many jurisdictions, replacing a fixture is something homeowners can legally do themselves, but adding new wiring or a new switch location typically requires a licensed electrician and, depending on local code, a permit. A catalog listing that doesn't distinguish between "plug-in" and "hardwired" in the product description is worth double-checking before you order, since returning a hardwired fixture after realizing you need an electrician is an avoidable hassle.
Matching the rest of a room ordered by catalog
Lighting bought as part of a broader home goods catalog order is worth sequencing last, after furniture and rugs have arrived, since finish tone (brass, black, brushed nickel) reads differently once other pieces are actually in the room rather than judged against a screen. If a fixture doesn't work out once installed, review the shipping and returns policy for hardwired items specifically — some sellers treat installed fixtures as non-returnable once wired, even within an otherwise generous return window, so it's worth test-fitting a plug-in version of a similar style first if the seller offers one.