Philips Electronic ballast HF-S 221-28 TL5 2

Philips Electronic Ballast HF-S 221-28 TL5 2 is an electronic ballast manufactured by Philips, designed to control and start neon discharge light sources, specifically TL5 fluorescent tubes rated at 21/28W. The unit features a metal housing with compact dimensions of 280 x 30 x 21 mm, making it straightforward to install inside luminaires where available space is limited.

This electronic ballast supports 2 light sources and operates at an input voltage of 220–240 V, making it fully compatible with European electrical standards. The IP20 protection rating restricts its use to dry indoor environments. Thanks to its reliable performance and compact form factor, it represents an efficient and practical solution for replacing or integrating ballasts in existing fluorescent fittings using TL5 tubes.