How bright, and measured against what?
Brightness is a comparison, not an absolute. Ask what the strip is competing with: daylight through a window, downlights already in the ceiling, or nothing in a dark alcove. A cove bouncing light off a pale ceiling behaves differently from a strip grazing dark stone.
Then read lumens per foot rather than total lumens for a reel. Output tiers across the LED strip range differ considerably, so shortlist by that published figure and by the distance the light has to travel.
What color, and does it need to move?
Two separate questions hide in this one. The first is white color temperature, which is fixed on a static white product and must be decided before ordering, because two temperatures in one sightline never settle down afterwards. The second is whether the light needs to change at all.
If yes, decide whether that means white temperature shifting, full color, or both, because each maps to a different strip construction and control chain. Controllers differ in channel count and per channel capacity, so match the controller to the strip type rather than the other way round.
Does it need to dim, and from what?
Dimming is where good intentions meet compatibility. Ask what the user will actually reach for: a wall device, a remote, an app, or nothing beyond a switch. Then confirm that the strip, driver, wall dimmer and any low voltage controller are documented to work together, and prove it with the parts in hand.
Keep the methods separate. Putting a smart low voltage controller on the same circuit as a phase cut wall dimmer is off limits unless both sets of documentation allow it. Where an app or remote is wanted for a color changing run, a unit such as the EnoSync Hub5 controller covers several strip types; confirm its per channel capacity against your load (verify the published rating before you rely on it).
Will water, steam or weather reach it?
Ask it even for interiors. A bathroom mirror surround, a covered porch, a planter edge and a refrigerated case present different exposure, and the answer sets an exact IP rating rather than a general description. Never accept a bare waterproof claim.
A rating describes the tape by itself. Where it is fixed, how joints are sealed, what encloses the driver and what code requires all bear on whether the installation suits the location. A high rated strip fed through an unsealed joint is only as protected as that joint.
How long is the run, and how many feeds?
Length drives two decisions. First, whether a continuous run stays inside that product's published maximum run or needs a second feed or power injection. Second, the load: multiply the product's watts per foot by the installed feet, then choose a supply with at least 20 percent capacity in reserve above that figure (verify the current headroom guidance and any published rating before ordering).
Voltage must match exactly, 24V tape to a 24V supply, and every run returns to the supply in parallel rather than being chained end to end. The EnoLED 24V ELD power supply is offered in plug in and direct wire forms, and the direct wire option changes who should install it (verify the published output and configuration before ordering). Our step by step project planning guide sets the sequence out.
Who is doing the wiring?
Be honest about this early; it changes what you buy. A plug connected supply and a low voltage run are within reach of a competent DIY installer. Hardwired drivers, junction boxes, wall dimmers and new circuits fall under line voltage rules. That is a licensed electrician's job, carried out to the product documentation, to code, and to the NEC where relevant.
If an electrician is involved, ask them before ordering rather than after. The device they expect to install may determine which driver you need.