When sourcing cylinder wall lights, prioritize IP Ratings (Ingress Protection); for outdoor use, a minimum of IP65 is required to ensure dust-tightness and protection against water jets. For indoor applications, IP20 is standard. Additionally, evaluate the Luminous Efficacy (lm/W), aiming for at least 100 lm/W to ensure energy efficiency. The Beam Angle is also critical—narrow angles (15°-30°) are ideal for accentuating architectural features, while wide angles (60°+) provide general ambient lighting. Ensure the housing is made of Die-cast Aluminum with a Powder-coated finish to prevent corrosion and ensure heat dissipation.