Read the sheet in the order it is installed
Nothing on a spec sheet is dishonest; plenty of it is irrelevant. A custom business logo projection light sheet will quote lumen output, power draw and beam angle, but what you need is image width at your throw distance and contrast against the light already on the surface. Those require two more numbers the sheet usually does not give you, which is why they are worth asking for.
Output numbers, ranked by how much they lie
Wattage tells you the running cost, not the result. Two custom business logo projection light models at the same wattage can differ by 30% at the wall because of lens efficiency and LED binning. What you actually care about is contrast: the image needs to be meaningfully brighter than the surface it lands on, and that is a lux comparison, not a lumen one.
The two numbers that must be quoted together
Throw distance without image width is meaningless, and plenty of sheets quote only one. A custom business logo projection light that throws 25 m might give you a 1 m logo at that distance or a 6 m one, depending on the lens — a difference that decides whether the install works. Always ask for the pair: distance and the resulting image size.
| Throw | Typical image width | Practical note |
|---|---|---|
| Short, around 5 m | 0.5 – 1.5 m | Bright and easy — most indoor work |
| Mid, around 25 m | 1.5 – 3 m | Where lens quality starts to matter |
| Long, beyond 25 m | 3 m and up | Contrast fails before reach does |
Gobo size, image area and resolution
The spec most sheets omit is the maximum artwork resolution the optics can resolve. A custom business logo projection light with a good lens will render fine detail that a cheaper unit turns to mush, which means the limiting factor is often the projector, not the gobo. If your design has thin strokes, ask what line width the system holds at your throw distance.
IP rating and electrical data
IP65 is the number to check for anything outdoors, but read what it covers. The first digit is solid ingress, the second is liquid. IP65 on a custom business logo projection light means dust-tight and protected against water jets, and it says nothing about the bracket, the gland or the connector, which are the parts that actually fail. Ask whether the rating covers the whole assembly or just the housing.
What a good supplier answers without hesitating
The most revealing question is about failure. Ask what the most common warranty claim on this custom business logo projection light is and how it is resolved. A supplier who answers honestly is worth more than one with a slightly better spec sheet.
