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ELECTRICAL SPEC: NEC CLASS 2 (12V / 24V DC) & IP67 POTTED LED
CCT BINS: 2700K • 3000K • 4000K • 5000K (CRI 90+)info@litnumbers.com
LitNumbers12V/24V Halo LED • Photocell • LiFePO4 Solar
PHOTOMETRIC BENCH • CLASS 2 SAFETY • INGRESS TESTING

About LitNumbers — Engineering Illuminated Curbside Legibility

LitNumbers focuses exclusively on the optical, electrical, and weatherproofing physics of illuminated residential and commercial address numbers.

Why Illuminated Signage Demands Dedicated Photometric Engineering

Standard unlit plaques disappear the moment civil twilight ends, while poorly engineered LED numbers suffer from harsh 6500K blue halation glare, AC landscape-transformer flicker, or internal condensation failure within a single winter. LitNumbers bridges architectural curb appeal and low-voltage electrical engineering so builders, electricians, and homeowners get durable, code-conscious night visibility on the first install.

Our Four Verification Pillars

  • Chromaticity & Wall Reflectance (CRI 90+ / 3-SDCM): Matching 2700K, 3000K, 4000K, and 5000K phosphor bins against stucco, limestone, brick, cedar, and dark slate LRV values.
  • NEC Article 725 Class 2 Low-Voltage Compliance: Sizing UL 1310 / UL 879 constant-voltage 12V and 24V DC drivers, parallel Wago gel manifolds, and CL2/CL3 copper wire runs under 3% voltage drop.
  • IEC 60529 IP67 Monolithic Potting: Specifying aliphatic optical polyurethane resin and cell-cast PMMA diffusers that eliminate thermal moisture pumping and UV yellowing.
  • Winter Solstice LiFePO4 Autonomy: Calculating 45°–55° monocrystalline solar tilt and 3.2V lithium iron phosphate storage for 14.5-hour December nights.

Direct Engineering Desk

Have questions about tapping an existing low-voltage lighting run, dimming halo brightness under Dark-Sky ordinances, or quoting a multi-building HOA community? Email our specification desk at info@litnumbers.com or visit our Custom Quote Desk.