# Lighting and displays and Transformers and power electronics

Their prices have moved together.

Source page: https://www.materialinsights.org/links/lighting-and-displays-and-transformers-and-power-electronics/

[Lighting and displays](https://www.materialinsights.org/energy/e_lighting/) (energy) and [Transformers and power electronics](https://www.materialinsights.org/energy/e_power_electronics/) (energy): 1 relationship.

## How they are linked

### 1. Price link: led drivers

*Cost and price · Strong · Both ways*

Every LED fixture contains a driver that converts mains power to low-voltage direct current. Yearly moves correlate at 0.70, a common driver from electrical equipment costs in US manufacturing. Driver quality also sets how long a fixture lasts.

- **0.24** monthly change correlation
- **0.70** 12-month change correlation
- **0.55** fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.