Water remains in the buried cavity and eventually enters the luminaire.
Design variables: Design sleeve drainage and waterproof wiring alongside housing seals.
Validation and deliverables: Immersion, thermal cycling and insulation checks.

Review the service and its applications. Scope, deliverables and fees are agreed following discussion.
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The following issues directly shape development scope, prototype validation and engineering deliverables.
Design variables: Design sleeve drainage and waterproof wiring alongside housing seals.
Validation and deliverables: Immersion, thermal cycling and insulation checks.
Design variables: Define trim height, tolerances, sleeve and leveling datum.
Validation and deliverables: Paving mock-up and walking-surface check.
Design variables: Coordinate glass thickness, support ring, seal compression and surface temperature.
Validation and deliverables: Static-load, impact and temperature-rise plan.
Design variables: Constrain light-source setback, shielding angle and aiming direction.
Validation and deliverables: Review brightness and glare from typical viewpoints.
Design variables: Define conductor size, potted splice, strain relief and service slack.
Validation and deliverables: Check wiring pull strength and condition after immersion.
Design variables: Use removable inserts, anti-seize details and tool access space.
Validation and deliverables: Validate removal time and sealing after reassembly.
Samples, tooling, third-party testing and certification, manufacturing and on-site installation are priced separately. Tax and invoicing terms are confirmed in the formal quote.
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