PRODUCT REVIEW
D50 Lighting™ 5000K A19 LED Bulb for Color Matching (ISO3664:2000)
★★★★
Nice D50 Bulb, But Not Impressed with SSI
I bought this bulb to illuminate prints as they come off of my Epson P900 inkjet printer, and for that purpose it works quite well. I measured a CCT of 5045K and CRIa of 97.0 (R9 93) with a Sekonic C-800-U spectrometer, so in spec there. However, the SSI was only 77 [CIE D50], a bit disappointing. I have attached a measured spectrum. I think the SSI value suffers from a drop-off in the greens and the significant blue spike that is characteristic of this type of LED bulb. I don't think I would use this bulb for photographic purposes."
