Real-Time Linear Wall Washer & Grazer Simulator

Stop guessing optical reach on high-rise facades. Simulate vertical illuminance ($E_v$) on textured architectural surfaces from $10\text{ m}$ heights down to base level. Test asymmetric grazing optics ($10^\circ \times 30^\circ$, $15^\circ \times 65^\circ$), fine-tune setback distances, and analyze live DIALux false-color heatmaps—all inside your browser.

I built this lightweight simulator as a fun, interactive playground for beginners and clients to experiment with lighting concepts before diving into heavy DIALux calculations. Drag lights, adjust luminous efficacy, see solid-wall occlusion in action, and get instant lux feedback—complete with one-click PDF reports to guide your final engineering plans.

DIALux Outdoor Linear Wall Washer & Grazer Simulator (10m x 5m)

Outdoor Linear Wall Washer & Grazer Simulator DIALux Photometric Core

10m Height × 5m Width Textured Facade · Bottom Ground-Grazing Engine · IESNA / CIE Standards

Wall: 10m (H) × 5m (W)

Linear Run: 5 × 1m (5m continuous)

Load: 180 W (19,800 lm)

100%

Probe: 245 lx | H: 3.2m, X: 2.5m

Click & drag linear washer luminaires at base · Scroll wheel or pinch to zoom · Drag canvas to pan

Linear Luminaire Profile

Power Rating (per 1m module): 36 W

Optical Beam Spread: 10° × 30° Asymmetric

Circular / Narrow / Wide Spot:

Asymmetric / Linear Wall Grazer:

Setback Distance (Offset from Wall): 0.25 m

0.05m (Tight Graze) 0.5m 1.0m (Wide Wash)

Aiming Tilt Toward Wall: 8°

Luminous Efficacy:

lm/W

Color Temperature: 3000K Warm White

Total 5m System Flux 19,800 lm

Estimated Peak Candela ~38,500 cd

Modular Arrangement (5m Base) 1-Meter Segments

DIALux Outdoor Linear Wall Washer Report

10.0m (H) × 5.0m (W) Exterior Masonry Facade · Photometric Graze Simulation

Date:

Target Facade: 10m × 5m Brick Surface

Vertical Height Illuminance Gradient ($E_v$)

Height Level	Average Lux ($E_v$)	Min Lux	Max Lux	Horizontal Uniformity ($U_0$)	Visual Performance

Linear Luminaire Technical Specification

Item	Module Wattage	Beam Distribution	Setback Distance	Tilt Angle	CCT	System Flux

Hondel aims to offer high-quality service to each client. Among our most popular LED products, there is a solution for every lighting problem you may encounter. We are experts in the field of Facade lighting. Additionally, we provide our customers with the most transcendent lighting fixtures – no matter how complicated the project might be.