Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Feasibility study of thermal losses conversion into Light for High Power
  LEDs using thermoelectric modules   Light Emitting Diodes emits no IR and no UV and their spectrum is fully in
the visible part. But LEDs are not cold and all energy losses are thermal
losses. The aim of this paper is to prove the feasibility to reuse the thermal
losses to produce light through a thermoelectric module. Papers where Peltier
modules are included in LEDs systems are all the time used for cooling [1-6].
At the knowledge of the authors, this the first time that thermal losses are
used to increase the global efficiency of a high power LED lighting system by
using Peltier modules to produce light.

16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph