Name #276 of 1000 · Viṣṇu Sahasranāma
प्रकाशात्माprakāśātmā
Prakashatma
He of self-luminous nature
From shloka 30 · chapter Varāha
ओजस्तेजोद्युतिधरः प्रकाशात्मा प्रतापनः ।
ऋद्धः स्पष्टाक्षरो मन्त्रश्चन्द्रांशुर्भास्करद्युतिः ॥
ojastejodyutidharaḥ prakāśātmā pratāpanaḥ
ṛddhaḥ spaṣṭākṣaro mantraścandrāṃśurbhāskaradyutiḥ
Also in this shloka: ojastejodyutidharaḥ · pratāpanaḥ · ṛddhaḥ · spaṣṭākṣaraḥ · mantraḥ · candrāṃśuḥ · bhāskaradyutiḥ