Start with the throw distance
Ask where the fixture will physically sit before asking what it should cost. On a welcome sign gobo projector the throw distance sets the lens, the lens sets the image size, and only then does wattage become a meaningful question. Buyers who start with the power figure usually end up with a unit that is either wasted on a short throw or hopeless on a long one.
Brightness is a question about the room, not the lamp
Match the output to the darkest hour you care about, not the brightest. If the welcome sign gobo projector only has to work after sunset, 20 W may be generous; if it has to hold up against a shop window at 4pm, you are looking at the top of the 20–100 W range and still managing expectations. Overbuying power to solve an ambient light problem is the most expensive way to fix it.
- Existing illumination at the working hour
- Surface colour and finish
- Image size versus available output
- Hours of operation and duty cycle
The optics decide what you can actually adjust
Ask two questions about the lens: what is the throw ratio range, and can focus be locked. A welcome sign gobo projector with a 3:1 zoom will cover 3 to 12 m from the same bracket, but only if the focus mechanism holds its setting once the housing is warm and the site has been vibrating for a month.
Gobo material: glass or metal
Your artwork decides the gobo material, not the other way round. A glass gobo handles fine strokes, gradients and photographic halftones that a metal stencil simply cannot hold, but it costs more and needs a little more care in handling. If the design is a solid single-colour mark with no fine detail, metal is cheaper and effectively unbreakable; if it has thin script or a gradient, glass is the only honest answer.
Where it lives matters as much as what it does
Match the rating to the site honestly. A welcome sign gobo projector mounted under a canopy needs far less protection than one on an open facade, and the price difference across ratings is real. What catches people out is the cable entry — a housing can be rated IP44 while the gland supplied with it is not, and that is where water actually gets in.
What to send when you ask for a quote
Before you send the enquiry, walk the site once with a tape measure and a phone camera. Throw distance, surface colour, the position of power, and a photo of the ambient light at the relevant hour will get you an accurate welcome sign gobo projector recommendation on the first reply — and they are all things you will need on install day anyway.
