G5458
φωστήρ
light
φωστήρ, -ῆρος, ὁ (φῶς), [in LXX: Gen.1:14, 16 (מָאוֹר), Dan LXX 12:3 (זֹהַר), I Est.8:79, Wis.13:2, Sir.43:7 * ;] a luminary, light: Php.2:15, Rev.21:11.† SYN.: φέγγος, φῶς (AS)
The KJV translates G5458 in the following manner:
light (2x), lights (2x)
Full Thayer's lexicon entry
φωστήρ — phōstḗr
φωστήρ, φωστηρος, ὁ (φῶς, φώσκω);
1. that which gives light, an illuminator (Vulg.luminar): of the stars (luminaries), Php 2:15 (Wis 13:2; Sir 43:7; Gen 1:14; Gen 1:16; Heliodorus 2, 24; (Anthol. Pal. 15, 17; of sun and moon, Test xii. Patr. test. Levi 14); ecclesiastical writings.)
2. light, brightness: Rev 21:11 (Anthol. 11, 359) (others refer this to 1; cf. Trench, § xlvi.).
2 occurrences
Philippians (1), Revelation of John (1)