The beautiful ambient glow of these spherical bulbs is produced by an array of LED filaments which mimic incandescent tungsten filament almost perfectly. These filaments are manufactured using chip-on-sapphire technology which allows LED light sources to emit omnidiretionally, instead of a directional Lambertian spatial intensity distribution that is typical of surface mounted device (SMD), flip-chip and conventional chip on board (COB) LEDs. The filaments are fabricated on synthetic sapphire substrates which are a transparent dielectric crystal aluminum oxide having useful transmission of wavelengths in the range 0.2 to 5.5 microns. The transparency of sapphire allows the LED chips to emanate through the substrate, thus creates a light distribution pattern identical to that of tungsten filaments.
Sapphire possesses many advantages over glass, ceramics and copper, which are used as alternative substrate materials in chip-on-cord (CoC) packaging. In addition to its exceptional optical performance, sapphire has superior physical and chemical properties including high thermal conductivity, tensile strength, volume resistivity, temperature stability, hardness and wear resistance. Sapphire-based filament technology not only makes it possible to produce a true 360 degree flux geometry, but also eliminates the bulky and costly aluminum heat sink. High thermal conductivity of sapphire substrate combined with elongated filament design allows the thermal energy generated at the LED junction to be transferred rapidly away from the filament. The hermetically sealed glass bulb is filled with thermally conductive inert gas to facilitate thermal conduction within the bulb. Excellent thermal management prevents heat flux concentration on the filaments and ensures exceptional performance and reliability as well as long lumen maintenance.
New Lights' globe bulb family includes G45, G80, G95, and G125 bulbs that come in 2, 4, 6, and 8 watts. These LED bulbs deliver a system efficacy of 120 lm/W combined with a 80 CRI in all available color temperatures. The LED filaments are powered by constant current IC drivers that operate over 110, 220 or 85-265 VAC input. These LED drivers provide excellent load regulation with a 70% power conversion efficiency.
- Classic filament design preserves vintage elegance.
- Omni-directional light distribution, 360° flux geometry.
- Sapphire-based filament technology delivers reliability and performance.
- High reliability chip interconnections using high purity gold bonding wires.
- High quality phosphor coating supporting high CRI and long lumen maintenance.
- High light transmittance glass bulb filled with inert argon gas.
- High efficiency LED driver providing excellent load regulation with constant current output.
- Delivering up to 90% energy savings over incandescent lamps.
- Glass tint options: clear, frosted, amber, mirrored.
- Bulb base: Edison screw or Bayonet.