Osram

Osram Golden Dragon Plus LED from a Uniquefire AA-S1 flashlight

Osram is a German company owned by Siemens. Their subsidiary that produces LED's is called Osram Opto Semiconductors GmbH. Osram is known for the Golden Dragon series of LED's and the OSTAR multiple-die LED's. The Golden Dragon Plus LED (comparable to a Cree XP-E) was used in several NiteCore flashlight models and is still used in some budget models (e.g. the Black Cat HM-01, Tank007 E07, and Uniquefire AA-S1). The Golden Dragon Plus is denoted by the product code W5AM while the regular Golden Dragon is W5SM. The difference between the two seems to be the Plus has a clear silicone lens over the LED while the Golden Dragon has flatter clear resin. However for some reason, the GDP seems to have a wider hotspot which is opposite of what a lens should do.

Osram Golden Dragon Plus Brightness Bins

Bin	350mA 100%	700mA 170%	1000mA 220%
JZ	61-71	104-121	134-156
KX	71-82	121-139	156-180
KY	82-97	139-165	180-213
KZ	97-112	165-190	213-246
LX	112-130	190-221	246-286
LY*	130-150	221-255	286-330

There are tint families for warm white (product code LCW, also includes neutral white tints), white (LW), and ultra white (LUW, others call it cool white). The warm white and ultra white families sometimes seem to follow ANSI White with a number of subgrids overlaid on each ANSI White quadrangle and sometimes falling above or below the ANSI quadrangle. It doesn't seem to be their intention to bin by individual subgrid but by groups of subgrids. The grid has numbers which are vertical subdivisions (6500K is divided into layers 4, 5, 6, 7, and 8 with 4 falling below and 8 falling above ANSI 6500K) and letters which are horizontal (they follow the color temperatures; for instance, 6500K is divided into vertical bands C,D, and E while 5700K is divided into F and G, and no bands are cooler than ANSI 6500K) as follows:

Osram Golden Dragon Plus Tint Bins

Bins	Subgrids	Temperature	ANSI Subgrids	Family
4C-8E	15	6500K	5C-7E	ultra white
5F-8G	8	5700K	5F-7G	ultra white
4J-8K	10	4500K	5J-7K	warm white
4L-8N	15	4000K	5L-7N	warm white
4O-9Q	18	3500K	5O-8Q	warm white
4R-9T	18	3000K	5R-8T	warm white
4U-9X	24	2700K	5U-8X	warm white

To make it a little more confusing, Osram has a different set of chromaticity groups that are not based on ANSI white but whose codes look very similar. These also appear in their datasheets. The regular white products only use this nonstandard approach.

External Links

These pages have more info about Osram LED's, including data sheets which contain performance information and binning and labeling info.

Golden Dragon at Osram

Golden Dragon Plus at Osram