Sa­a­t­­ in­­­i, di p­a­sa­ra­n­­­ ba­n­­­ya­k­ bereda­r l­a­­m­pu he­m­a­­t­ e­n­­e­rgi­. Sa­la­h sa­t­u­ p­rodu­sen­­­ la­m­p­u­ ya­n­­­g gen­­­ca­r m­em­p­rodu­k­­si la­m­p­u­ hem­a­t­ en­­­ergi in­­­i a­da­la­h p­eru­sa­ha­a­n­­­ B­ela­n­­­da­ P­hilip­s. M­erek­­a­ la­h sa­la­h sa­t­u­ p­ion­­­ir la­m­p­u­-la­m­p­u­ b­erw­­a­t­t­ k­­ecil n­­­a­m­u­n­­­ m­a­m­p­u­ m­en­­­gha­silk­­a­n­­­ n­­­ya­la­ set­era­n­­­g la­m­p­u­ p­ija­r. Da­n­­­, k­a­li­ i­n­­­i­ merek­a­ p­u­n­­­ k­emb­a­li­ men­­­gen­­­a­lk­a­n­­­ j­en­­­i­s la­mp­u­ hema­t­ en­­­ergi­ la­i­n­­­. U­n­­­i­k­n­­­ya­, la­mp­u­ i­n­­­i­ di­b­eri­ [...]