... (Incandescent lamp transfers only 20% of electricity to light, but 80% to heat)♣ Up to 90 Lm/W of minimum luminous effect. LED ... or discoloration. tube5. Safe and durable:♣ Working life up to 10,000 to 50,000 hrs. (incandescent lamp only 1,000 hrs ... Lower voltage and lower current♣ Low heat, safe to touch. light6. Convenient to use: ♣ Using standard base, replace the ordinary halogen, incandescent and ...