Lighting a porch so the camera can actually see

Almost everything people dislike about their camera at night comes back to the light itself, and the lens is rarely at fault. Where it points, what color it is, and whether it stays on. Get those three right and most night-time complaints stop.

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A porch at dusk lit by a single warm light, showing how far it reaches
How far the light reaches matters more than how bright it is at the fitting.

Where it points

Beside and forward of the camera, angled down. Never above it, never behind it, and never aimed at the door. If the fixture is fixed in a bad position and cannot move, a shield or glare guard that stops light traveling back toward the lens is the next best thing.

What color it is

Warm light attracts far fewer insects than cool white or daylight, which matters because insects near the lens are the leading cause of night-time false alerts. Warm also looks less like an interrogation and more like a house. If you want color night vision to work, avoid the very warmest bulbs, which leave the image heavily tinted.

Whether it stays on

A steady low light gives the camera one consistent exposure to settle at. A motion-activated light makes the exposure hunt every time it fires, and adds a brightness change some cameras read as motion in its own right. If you keep motion activation, a low steady background level underneath it is a good compromise.

Brighter is not the goal, and usually makes things worse

A camera does not need much light to expose a face well. It needs light that is even, that comes from the right direction, and that does not appear in the frame. A high-output floodlight aimed across the door achieves none of those and gives you a blown-out image with black shadows next to it. Reach for placement before you reach for lumens.

It solves wiring and it is genuinely convenient. What it cannot solve is geometry. Putting the lamp in the same housing as the lens is the closest the light can possibly be to the camera, which is the arrangement that attracts insects to the lens and makes glare hardest to avoid. It is a reasonable choice and not automatically the best one.
A lit porch changes behavior at the margin and makes a recording usable. It is not a deterrent you should rely on, and neither is a camera. Both of them record and describe; they do not prevent.
A plain warm LED does the job. A smart bulb is worth it only if you actually want scheduling or dimming. A steady low level overnight is a real use for it. Do not add a device to solve a placement problem.
A plug-in or battery light placed on the opposite side of the door, aimed at the floor, gets you most of the way without touching the wiring. Keep it out of frame and keep it low.
Warm-white bulb lit at dusk in an outdoor porch lantern
Lighting

Gonhom 2700K dusk-to-dawn outdoor bulb

A warm-white outdoor bulb that switches itself on at dusk, which covers two of the three things a porch light needs to get right for a camera. Warm light draws far fewer insects to the lens than cool white, and insects at the lens are a common cause of overnight false alerts. Dusk-to-dawn gives the camera one steady exposure to settle at instead of a light that jumps on and off all night. Sold in twos, 720 lumens each on a standard E26 screw, which is bright enough for a porch without blowing out the near field. Where it points is still down to you.

Lighting glyph for Kichler Cylinders outdoor wall sconce, Dark Sky
Lighting

Kichler Cylinders outdoor wall sconce, Dark Sky

A downward cylinder rather than a lantern, which is the shape this site keeps asking for. Dark Sky compliant means the light leaves the bottom and not the sides, so it lands on the step where a face is instead of shining into the lens. Wet rated, cast aluminum, and an E26 socket taking a BR30 up to 65W, so the warm dusk-to-dawn bulb here screws straight into it. It is a fixture, not a bulb: fitting it is wall wiring.