1- Materials
Given tenant and labor cost indifferent, raw materials are very important factor to quality and marketing.
LED chips: Epistar, Light guide plate and Diffuser: Japanese Mitsubishi or Token, SMD fabrication: American Dow Corning silicone, Japanese Tanaka gold wire, Intimatix or Nichia phosphor. Local rolled copper PCBs (Brand Guozhang or Chuanglian)
(why LED are expensive-- because upper source are big brands who own patents and good technology..)
2- Photometric
For LED strips and panel fittings we can have various color options, CCT options, CRI options and flux options. Purity (95%) and SDCM (4 or 5). Good thing is our longevity is very good. By L70, lifetime 50.000 hours is accountable.
3- Thermal management/ electrical design
This is crucial issue impacting life time and photometric performance. Industry uses 6063 Aluminium alloy for fitting frames dissipating the heat.
151 or 131 resistance are applied for 20mA or 60mA current. Every 6 or 7 leds per step.
4. Connections and solutions
Think your customers who are installers will care about solution most. LED fittings are in DC. Dimming or control is very easy. Any PWM-output equipment shall work on them.
IES files, with Dialux, in attached can help calculate exact qty of fittings installers is in need of.