Complex sentence: Most lamp housing designs are inherently tougher and thicker than traditional tungsten units in the event of a bulb explosion to protect those nearby from flying debris, yet there is still the possibility of the front lens element on the lamp head cracking from thermal shock.
Split into simpler sentences: Most lamp housing designs are inherently tougher and thicker than traditional tungsten units so that in the event of a bulb explosion, those nearby are protected from flying debris. Yet there is still the possibility of the front lens element on the lamp head cracking from thermal shock.